Colour

#231B10

#231B10
Orange
Dark
Nearest: Black

#231B10 is a orange with RGB values 35, 27, 16 and HSL 35°, 37%, 10%. It is a dark colour, so white text on it reaches 17:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#231B10#231B10

HEX#231B10

RGBrgb(35, 27, 16)

RGB (0–1)0.1373, 0.1059, 0.0627

RGB percentages13.7%, 10.6%, 6.3%

HSLhsl(34.7, 37.3%, 10%)

HSV / HSBhsv(34.7, 54.3%, 13.7%)

CMYK0%, 22.9%, 54.3%, 86.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,300,688

CSS custom property--colour: #231B10;

Brightness & contrast

Relative luminance0.01179WCAG 2.x, 0 is black and 1 is white

Perceived brightness28.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.99:1

Contrast with white16.99:1WCAG normal text: AAA

Contrast with black1.24:1WCAG normal text: Fail

Greyscale equivalent#1C1C1C

Inverted#DCE4EF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#1E1B0Fno red cones; affects about 1% of men; ΔE 3 from the original

Deuteranopia#201D10no green cones; the most common form, about 1% of men; ΔE 3.1 from the original

Tritanopia#261918no blue cones; rare, and affects men and women equally; ΔE 6.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text16.99:1WCAG large text: AAA

Contrast with black, large text1.24:1WCAG large text: Fail

Named colours

Black · ΔE 13.6 Dark slate grey · ΔE 27.8 Dim grey · ΔE 35.1 Dark olivegreen · ΔE 43.9 Gray · ΔE 44.1 Slate grey · ΔE 46.7

Nearest named CSS colourBlack (#000000)ΔE 13.6, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#101823

Analogous#231110, #222310

Triadic#10231B, #1B1023

Split complementary#102223, #111023

Tetradic#102311, #101823, #231022

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#AF8750

Lighter +30%#8C6C40

Lighter +20%#695130

Lighter +10%#463620

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#291C0A

Less saturated −25%#1D1A16

Channel breakdown

R35

G27

B16

Red35 (13.7%)

Green27 (10.6%)

Blue16 (6.3%)

Hue34.74°

Saturation (HSL)37.25%

Lightness10%

Dominant channelRed

Hex per channelR 23 · G 1B · B 10

Keep nerding

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#231B10

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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