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Recognised as Colour

#21402B

  • #21402B
  • Green
  • Dark
  • Nearest: Dark slate grey

#21402B is a green with RGB values 33, 64, 43 and HSL 139°, 32%, 19%. It is a dark colour, so white text on it reaches 11.5:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#21402B#21402B
HEX#21402B
RGBrgb(33, 64, 43)
RGB (0–1)0.1294, 0.251, 0.1686
RGB percentages12.9%, 25.1%, 16.9%
HSLhsl(139.4, 32%, 19%)
HSV / HSBhsv(139.4, 48.4%, 25.1%)
CMYK48.4%, 0%, 32.8%, 74.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,179,115
CSS custom property--colour: #21402B;

Brightness & contrast

Relative luminance0.04165WCAG 2.x, 0 is black and 1 is white
Perceived brightness54.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.46:1
Contrast with white11.46:1WCAG normal text: AAA
Contrast with black1.83:1WCAG normal text: Fail
Greyscale equivalent#383838
Inverted#DEBFD4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#403B2Ano red cones; affects about 1% of men; ΔE 16.3 from the original
Deuteranopia#3B382Cno green cones; the most common form, about 1% of men; ΔE 16.1 from the original
Tritanopia#1B3F3Ano blue cones; rare, and affects men and women equally; ΔE 10.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.46:1WCAG large text: AAA
Contrast with black, large text1.83:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 15.8Dark olivegreen · ΔE 27.9Dim grey · ΔE 28.1Black · ΔE 31.1Teal · ΔE 32.1Gray · ΔE 35.3
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 15.81, a distinctly different colour
Hue familygreen
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#402136
Analogous#264021, #21403B
Triadic#2B2140, #402B21
Split complementary#3B2140, #402126
Tetradic#212640, #402136, #403B21

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#75B88B
Lighter +30%#55A56F
Lighter +20%#448358
Lighter +10%#326242
Darker −10%#101E14
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#154C27
Less saturated −25%#2D342F

Channel breakdown

R33
G64
B43
Red33 (12.9%)
Green64 (25.1%)
Blue43 (16.9%)
Hue139.35°
Saturation (HSL)31.96%
Lightness19.02%
Dominant channelGreen
Hex per channelR 21 · G 40 · B 2B

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Every value on this page was computed from “21402b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.