Colour

#1C1801

#1C1801
Yellow
Dark
Nearest: Black

#1C1801 is a yellow with RGB values 28, 24, 1 and HSL 51°, 93%, 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

#1C1801#1C1801

HEX#1C1801

RGBrgb(28, 24, 1)

RGB (0–1)0.1098, 0.0941, 0.0039

RGB percentages11%, 9.4%, 0.4%

HSLhsl(51.1, 93.1%, 5.7%)

HSV / HSBhsv(51.1, 96.4%, 11%)

CMYK0%, 14.3%, 96.4%, 89%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,841,153

CSS custom property--colour: #1C1801;

Brightness & contrast

Relative luminance0.00902WCAG 2.x, 0 is black and 1 is white

Perceived brightness23.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.79:1

Contrast with white17.79:1WCAG normal text: AAA

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

Greyscale equivalent#171717

Inverted#E3E7FE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#1C1700no red cones; affects about 1% of men; ΔE 0.7 from the original

Deuteranopia#1D1802no green cones; the most common form, about 1% of men; ΔE 0.8 from the original

Tritanopia#1F1513no blue cones; rare, and affects men and women equally; ΔE 10.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.79:1WCAG large text: AAA

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

Named colours

Black · ΔE 14.4 Dark slate grey · ΔE 29.5 Dim grey · ΔE 38.2 Dark olivegreen · ΔE 42.5 Gray · ΔE 47 Slate grey · ΔE 50

Nearest named CSS colourBlack (#000000)ΔE 14.44, a distinctly different colour

Hue familyyellow

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#01051C

Analogous#1C0A01, #131C01

Triadic#011C18, #18011C

Split complementary#01131C, #0A011C

Tetradic#011C0A, #01051C, #1C0113

Tints, shades & saturation

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

Lighter +40%#E1C108

Lighter +30%#B09706

Lighter +20%#7E6C05

Lighter +10%#4D4203

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#1D1900

Less saturated −25%#181505

Channel breakdown

R28

G24

Red28 (11%)

Green24 (9.4%)

Blue1 (0.4%)

Hue51.11°

Saturation (HSL)93.1%

Lightness5.69%

Dominant channelRed

Hex per channelR 1C · G 18 · B 01

Keep nerding

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#1C1801

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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