#F65310

sRGB · 246 / 83 / 16

#F65310 belongs to the orange family. Its hex code tells a screen to mix 246 red, 83 green and 16 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 17.5° lands in the orange region. Its 92.7% saturation makes it strong in color at this lightness. HSL lightness is 51.4% on a scale from black (0%) to white (100%). Of black and white lettering, black has the clearer light-to-dark separation on this background (6.16:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 246, 83, 16
HSL: 17.48°, 92.74%, 51.37%
HSV / HSB: 17.48°, 93.50%, 96.47%
CMYK (approx.): 0.00%, 66.26%, 93.50%, 3.53%
CIE XYZ (D65, Y = 100 for white): 41.192, 25.820, 3.305
CIELAB (D65, 2° observer): 57.866, 59.994, 64.971
WCAG relative luminance: 0.25817
24-bit decimal: 16143120

CMYK uses a profile-free approximation. Printed output depends on the press, ink and paper. Lab uses a D65 white point.

Text contrast

Contrast tells you how clearly lettering separates from #F65310 in light and dark. The ratio compares relative luminance, a measure of light weighted for human vision. Identical colors give 1:1 and black against white gives 21:1. A ratio of 2.99:1 falls just below the 3:1 AA minimum for large text. Body text needs at least 4.5:1 because its finer strokes are harder to distinguish.

Black text · 6.16:1

Normal text: AA
Large text: AAA

White text · 3.41:1

Normal text: Fail
Large text: AA

AA and AAA are WCAG accessibility levels. AAA sets a higher bar: 7:1 for normal text and 4.5:1 for large text. Large text begins at 18 pt regular or 14 pt bold. Ratings use the unrounded ratio. WCAG text contrast guidance

Palettes & scales

Harmonies rotate the hue. Scales mix the starting color with white, black or middle gray in 20% steps in encoded sRGB.

Complementary

#10B3F6 sits half a turn (180°) from #F65310 on the HSL wheel. Keeping saturation and lightness steady while crossing to the opposite hue gives you a contrasting accent. Check text contrast separately before using the pair for lettering.

#F65310 #10B3F6

Analogous

#F61040 and #F6C610 sit 30° to either side of #F65310. The three hues are neighbors on the wheel, so you can change the color of a border or highlight while keeping it close to the original.

#F61040 #F65310 #F6C610

Triadic

#F65310, #10F653 and #5310F6 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#F65310 #10F653 #5310F6

Split complementary

Start at #F65310 and look across the wheel. #10F6C6 and #1040F6 sit 30° to either side of its exact opposite, giving you two different accent choices.

#F65310 #10F6C6 #1040F6

Square

Starting with #F65310, each quarter turn (90°) takes you to the next hue: #40F610, #10B3F6, then #C610F6. Across the square, #F65310 pairs with #10B3F6, and #40F610 with #C610F6.

#F65310 #40F610 #10B3F6 #C610F6

Tetradic

#F65310 and #10B3F6 are opposites, as are #B3F610 and #5310F6. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#F65310 #B3F610 #10B3F6 #5310F6

Tints

Mixing #F65310 with white in 20% steps produces this scale. The first mixture, #F87540, keeps 80% of the original. By #FDDDCF, the mixture is 80% white.

#F65310 #F87540 #FA9870 #FBBA9F #FDDDCF #FFFFFF

Shades

Mixing #F65310 with black in 20% steps produces this scale. The first mixture, #C5420D, keeps 80% of the original. By #311103, the mixture is 80% black.

#F65310 #C5420D #94320A #622106 #311103 #000000

Tones

Mixing #F65310 with middle gray in 20% steps produces this scale. The first mixture, #DE5C26, keeps 80% of the original. By #98776A, the mixture is 80% middle gray.

#F65310 #DE5C26 #C7653D #AF6E53 #98776A #808080

Copy color codes

Hex, RGB and HSL are three ways to write this screen color. Paste any of them into a CSS color property.

Hex

#F65310

RGB

rgb(246 83 16)

HSL

hsl(17.478 92.742% 51.373%)

CSS example

.color-sample {
  background-color: #F65310;
  color: #000000;
}

Channel breakdown

RGB

#F65310 uses 246 red, 83 green and 16 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 96.5%

Green 32.5%

Blue 6.3%

CMYK

A simple CMYK estimate for #F65310 is 0.0% cyan, 66.3% magenta, 93.5% yellow and 3.5% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 0.0%

Magenta 66.3%

Yellow 93.5%

Black 3.5%

Nearby colors

The nearest shorthand match is #EE5511. Its matching digit pairs let you write it as #E51 in CSS. For a modern design, keep #F65310 when you want an exact match. Use its web-safe neighbor, #FF6600, when matching a legacy palette of 216 colors.

Nearest shorthand · #EE5511 Nearest web-safe · #FF6600

Gradient to complement

#F65310 #D06336 #A9735D #838383 #5D93A9 #36A3D0 #10B3F6

Color vision previews

Compare how #F65310 appears in each simulation. When two chart lines or status indicators become hard to tell apart, a label, shape or line pattern gives readers another way to distinguish them. Individual perception varies.

Protanopia

A red–green color vision deficiency. Without a distinct response from long-wavelength cones, some reds and greens can look alike, and reds can appear darker.

#847400

Deuteranopia

A red–green color vision deficiency. Without a distinct response from medium-wavelength cones, some greens can be difficult to distinguish from reds or browns.

#AC9900

Tritanopia

A blue–yellow color vision deficiency. Without a distinct response from short-wavelength cones, blue can resemble green, and yellow can resemble pink.

#FF1849

Protanomaly (50%)

An altered long-wavelength cone response can make reds appear dimmer and harder to distinguish from greens. This swatch shows the model’s halfway setting.

#B86F00

Deuteranomaly (50%)

An altered medium-wavelength cone response can reduce the visible difference between reds and greens. This swatch shows the model’s halfway setting.

#C58500

Tritanomaly (50%)

An altered short-wavelength cone response can make blue harder to distinguish from green. This swatch shows the model’s halfway setting.

#F84F31

Grayscale (luminance)

This design check removes hue and preserves relative luminance so you can compare light and dark areas.

#8B8B8B

Partial grayscale (50% blend)

This design check mixes the original color halfway toward its grayscale equivalent in linear light. Use it to see how a design holds up as color fades.

#CA7366

Technical reference

CAM16 and CIECAM02 below assume D65 white, an average surround, background Y of 20 against white at 100, and adapting luminance of 4.07 cd/m².

Linear sRGB

These channels scale with emitted light. Use them for lighting calculations and physically meaningful blends.

R 0.92158 G 0.08650 B 0.00518

Display P3

P3 displays can reproduce a wider range of reds and greens. These coordinates reproduce this same sRGB swatch on a color-managed P3 display.

R 0.89284 G 0.37221 B 0.17823

Linear Display P3

These P3 channels are proportional to light, before display encoding.

R 0.77332 G 0.11422 B 0.02672

CIE xyY

The x and y coordinates locate chromaticity on a diagram. Y gives relative luminance on a scale where white is 100.

x 0.586 y 0.367 Y 25.820

CMY

Ideal cyan, magenta and yellow are the complements of the encoded red, green and blue channels.

C % 3.529 M % 67.451 Y % 93.725

Binary RGB

Each eight-bit group represents one channel. Together they store the 24-bit hex color.

11110110 01010011 00010000