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Colour

#25231D

  • #25231D
  • Yellow
  • Dark
  • Nearest: Black

#25231D is a yellow with RGB values 37, 35, 29 and HSL 45°, 12%, 13%. It is a dark colour, so white text on it reaches 15.7:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#25231D#25231D
HEX#25231D
RGBrgb(37, 35, 29)
RGB (0–1)0.1451, 0.1373, 0.1137
RGB percentages14.5%, 13.7%, 11.4%
HSLhsl(45, 12.1%, 12.9%)
HSV / HSBhsv(45, 21.6%, 14.5%)
CMYK0%, 5.4%, 21.6%, 85.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,433,821
CSS custom property--colour: #25231D;

Brightness & contrast

Relative luminance0.01684WCAG 2.x, 0 is black and 1 is white
Perceived brightness35 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.71:1
Contrast with white15.71:1WCAG normal text: AAA
Contrast with black1.34:1WCAG normal text: Fail
Greyscale equivalent#232323
Inverted#DADCE2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#24231Dno red cones; affects about 1% of men; ΔE 0.5 from the original
Deuteranopia#25231Dno green cones; the most common form, about 1% of men; ΔE 0 from the original
Tritanopia#262221no blue cones; rare, and affects men and women equally; ΔE 3.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.71:1WCAG large text: AAA
Contrast with black, large text1.34:1WCAG large text: Fail

Named colours

Black · ΔE 14.4Dark slate grey · ΔE 22.4Dim grey · ΔE 31Gray · ΔE 40.1Slate grey · ΔE 41.9Dark olivegreen · ΔE 42.9
Nearest named CSS colourBlack (#000000)ΔE 14.42, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1D1F25
Analogous#251F1D, #23251D
Triadic#1D2523, #231D25
Split complementary#1D2325, #1F1D25
Tetradic#1D251F, #1D1F25, #251D23

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#968E78
Lighter +30%#7B7460
Lighter +20%#5E594A
Lighter +10%#423E33
Darker −10%#080807
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#2D2715
Less saturated −25%#212121

Channel breakdown

R37
G35
B29
Red37 (14.5%)
Green35 (13.7%)
Blue29 (11.4%)
Hue45°
Saturation (HSL)12.12%
Lightness12.94%
Dominant channelRed
Hex per channelR 25 · G 23 · B 1D

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Every value on this page was computed from “25231d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.