Colour

#1B1804

#1B1804
Yellow
Dark
Nearest: Black

#1B1804 is a yellow with RGB values 27, 24, 4 and HSL 52°, 74%, 6%. It is a dark colour, so white text on it reaches 17.8:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#1B1804#1B1804

HEX#1B1804

RGBrgb(27, 24, 4)

RGB (0–1)0.1059, 0.0941, 0.0157

RGB percentages10.6%, 9.4%, 1.6%

HSLhsl(52.2, 74.2%, 6.1%)

HSV / HSBhsv(52.2, 85.2%, 10.6%)

CMYK0%, 11.1%, 85.2%, 89.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,775,620

CSS custom property--colour: #1B1804;

Brightness & contrast

Relative luminance0.00895WCAG 2.x, 0 is black and 1 is white

Perceived brightness23.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.81:1

Contrast with white17.81:1WCAG normal text: AAA

Contrast with black1.18:1WCAG normal text: Fail

Greyscale equivalent#171717

Inverted#E4E7FB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#1B1703no red cones; affects about 1% of men; ΔE 0.7 from the original

Deuteranopia#1C1805no green cones; the most common form, about 1% of men; ΔE 0.7 from the original

Tritanopia#1E1613no blue cones; rare, and affects men and women equally; ΔE 8.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.81:1WCAG large text: AAA

Contrast with black, large text1.18:1WCAG large text: Fail

Named colours

Black · ΔE 13.4 Dark slate grey · ΔE 28.8 Dim grey · ΔE 37.9 Dark olivegreen · ΔE 43.1 Gray · ΔE 46.7 Slate grey · ΔE 49.4

Nearest named CSS colourBlack (#000000)ΔE 13.35, a distinctly different colour

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#04071B

Analogous#1B0C04, #131B04

Triadic#041B18, #18041B

Split complementary#04131B, #0C041B

Tetradic#041B0C, #04071B, #1B0413

Tints, shades & saturation

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

Lighter +40%#CDB61E

Lighter +30%#A08E18

Lighter +20%#746711

Lighter +10%#473F0B

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#1F1B00

Less saturated −25%#171508

Channel breakdown

R27

G24

Red27 (10.6%)

Green24 (9.4%)

Blue4 (1.6%)

Hue52.17°

Saturation (HSL)74.19%

Lightness6.08%

Dominant channelRed

Hex per channelR 1B · G 18 · B 04

Keep nerding

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#1B1804

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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