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Recognised as Colour

#02271F

  • #02271F
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#02271F is a cyan with RGB values 2, 39, 31 and HSL 167°, 90%, 8%. It is a dark colour, so white text on it reaches 16:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#02271F#02271F
HEX#02271F
RGBrgb(2, 39, 31)
RGB (0–1)0.0078, 0.1529, 0.1216
RGB percentages0.8%, 15.3%, 12.2%
HSLhsl(167, 90.2%, 8%)
HSV / HSBhsv(167, 94.9%, 15.3%)
CMYK94.9%, 0%, 20.5%, 84.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer141,087
CSS custom property--colour: #02271F;

Brightness & contrast

Relative luminance0.01563WCAG 2.x, 0 is black and 1 is white
Perceived brightness31.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16:1
Contrast with white16:1WCAG normal text: AAA
Contrast with black1.31:1WCAG normal text: Fail
Greyscale equivalent#1F1F1F
Inverted#FDD8E0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#25241Fno red cones; affects about 1% of men; ΔE 15 from the original
Deuteranopia#202020no green cones; the most common form, about 1% of men; ΔE 15.6 from the original
Tritanopia#002825no 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 text16:1WCAG large text: AAA
Contrast with black, large text1.31:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 19.4Black · ΔE 20.3Dim grey · ΔE 35.1Teal · ΔE 39Dark olivegreen · ΔE 41.3Dark cyan · ΔE 43.3
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 19.39, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#27020A
Analogous#02270C, #021C27
Triadic#1F0227, #271F02
Split complementary#27021C, #270D02
Tetradic#0D0227, #27020A, #1C2702

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#0CE9B9
Lighter +30%#09B993
Lighter +20%#07886C
Lighter +10%#045846
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#002920
Less saturated −25%#07221C

Channel breakdown

R2
G39
B31
Red2 (0.8%)
Green39 (15.3%)
Blue31 (12.2%)
Hue167.03°
Saturation (HSL)90.24%
Lightness8.04%
Dominant channelGreen
Hex per channelR 02 · G 27 · B 1F

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Every value on this page was computed from “02271f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.