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Colour

#423C01

  • #423C01
  • Yellow
  • Dark
  • Nearest: Dark olivegreen

#423C01 is a yellow with RGB values 66, 60, 1 and HSL 54°, 97%, 13%. It is a dark colour, so white text on it reaches 11.2:1 contrast (AAA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#423C01#423C01
HEX#423C01
RGBrgb(66, 60, 1)
RGB (0–1)0.2588, 0.2353, 0.0039
RGB percentages25.9%, 23.5%, 0.4%
HSLhsl(54.5, 97%, 13.1%)
HSV / HSBhsv(54.5, 98.5%, 25.9%)
CMYK0%, 9.1%, 98.5%, 74.1%naive device-independent conversion; real print needs an ICC profile
24-bit integer4,340,737
CSS custom property--colour: #423C01;

Brightness & contrast

Relative luminance0.04392WCAG 2.x, 0 is black and 1 is white
Perceived brightness58.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.18:1
Contrast with white11.18:1WCAG normal text: AAA
Contrast with black1.88:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#BDC3FE

Colour vision & accessibility

Protanopia#433A00no red cones; affects about 1% of men; ΔE 1.8 from the original
Deuteranopia#453C05no green cones; the most common form, about 1% of men; ΔE 2.2 from the original
Tritanopia#483732no blue cones; rare, and affects men and women equally; ΔE 29.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.18:1WCAG large text: AAA
Contrast with black, large text1.88:1WCAG large text: Fail

Named colours

Nearest named CSS colourDark olivegreen (#556B2F)ΔE 22.68, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#010742
Analogous#421B01, #284201
Triadic#01423C, #3C0142
Split complementary#012842, #1B0142
Tetradic#01421B, #010742, #420128

Tints, shades & saturation

Lighter +40%#FBE614
Lighter +30%#D9C503
Lighter +20%#A69703
Lighter +10%#746A02
Darker −10%#100E00
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#433D00
Less saturated −25%#3A3509

Channel breakdown

R66
G60
B1
Red66 (25.9%)
Green60 (23.5%)
Blue1 (0.4%)
Hue54.46°
Saturation (HSL)97.01%
Lightness13.14%
Dominant channelRed
Hex per channelR 42 · G 3C · B 01

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Every value on this page was computed from “423c01” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.