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Recognised as Colour

#423F06

  • #423F06
  • Yellow
  • Dark
  • Nearest: Dark olivegreen

#423F06 is a yellow with RGB values 66, 63, 6 and HSL 57°, 83%, 14%. It is a dark colour, so white text on it reaches 10.8:1 contrast (AAA for normal text). The nearest named colour is Dark olivegreen.

Colour values

#423F06#423F06
HEX#423F06
RGBrgb(66, 63, 6)
RGB (0–1)0.2588, 0.2471, 0.0235
RGB percentages25.9%, 24.7%, 2.4%
HSLhsl(57, 83.3%, 14.1%)
HSV / HSBhsv(57, 90.9%, 25.9%)
CMYK0%, 4.5%, 90.9%, 74.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,341,510
CSS custom property--colour: #423F06;

Brightness & contrast

Relative luminance0.04726WCAG 2.x, 0 is black and 1 is white
Perceived brightness60.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.8:1
Contrast with white10.8:1WCAG normal text: AAA
Contrast with black1.95:1WCAG normal text: Fail
Greyscale equivalent#3C3C3C
Inverted#BDC0F9

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#453C00no red cones; affects about 1% of men; ΔE 3.8 from the original
Deuteranopia#473E0Bno green cones; the most common form, about 1% of men; ΔE 3.9 from the original
Tritanopia#483A35no blue cones; rare, and affects men and women equally; ΔE 29.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.8:1WCAG large text: AAA
Contrast with black, large text1.95:1WCAG large text: Fail

Named colours

Dark olivegreen · ΔE 20.8Saddle brown · ΔE 35.5Olive · ΔE 36.3Dark slate grey · ΔE 36.8Dim grey · ΔE 37.7Sienna · ΔE 39.8
Nearest named CSS colourDark olivegreen (#556B2F)ΔE 20.78, a distinctly different colour
Hue familyyellow
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#060942
Analogous#422106, #274206
Triadic#06423F, #3F0642
Split complementary#062742, #210642
Tetradic#064221, #060942, #420627

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ECE228
Lighter +30%#CEC513
Lighter +20%#A0980E
Lighter +10%#716C0A
Darker −10%#131202
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#484400
Less saturated −25%#39370F

Channel breakdown

R66
G63
B6
Red66 (25.9%)
Green63 (24.7%)
Blue6 (2.4%)
Hue57°
Saturation (HSL)83.33%
Lightness14.12%
Dominant channelRed
Hex per channelR 42 · G 3F · B 06

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Every value on this page was computed from “423f06” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.