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Colour

#121D18

  • #121D18
  • Cyan
  • Dark
  • Nearest: Black

#121D18 is a cyan with RGB values 18, 29, 24 and HSL 153°, 23%, 9%. It is a dark colour, so white text on it reaches 17.3:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#121D18#121D18
HEX#121D18
RGBrgb(18, 29, 24)
RGB (0–1)0.0706, 0.1137, 0.0941
RGB percentages7.1%, 11.4%, 9.4%
HSLhsl(152.7, 23.4%, 9.2%)
HSV / HSBhsv(152.7, 37.9%, 11.4%)
CMYK37.9%, 0%, 17.2%, 88.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,187,096
CSS custom property--colour: #121D18;

Brightness & contrast

Relative luminance0.01073WCAG 2.x, 0 is black and 1 is white
Perceived brightness25.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.29:1
Contrast with white17.29:1WCAG normal text: AAA
Contrast with black1.21:1WCAG normal text: Fail
Greyscale equivalent#1A1A1A
Inverted#EDE2E7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1D1B18no red cones; affects about 1% of men; ΔE 6.7 from the original
Deuteranopia#1B1A18no green cones; the most common form, about 1% of men; ΔE 6.4 from the original
Tritanopia#101D1Cno blue cones; rare, and affects men and women equally; ΔE 3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.29:1WCAG large text: AAA
Contrast with black, large text1.21:1WCAG large text: Fail

Named colours

Black · ΔE 11.7Dark slate grey · ΔE 23Dim grey · ΔE 35.5Gray · ΔE 44.5Slate grey · ΔE 45.2Dark olivegreen · ΔE 45.2
Nearest named CSS colourBlack (#000000)ΔE 11.65, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1D1217
Analogous#121D13, #121C1D
Triadic#18121D, #1D1812
Split complementary#1D121C, #1D1312
Tetradic#13121D, #1D1217, #1C1D12

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#609B80
Lighter +30%#4D7B66
Lighter +20%#395C4C
Lighter +10%#263C32
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0C2319
Less saturated −25%#181818

Channel breakdown

R18
G29
B24
Red18 (7.1%)
Green29 (11.4%)
Blue24 (9.4%)
Hue152.73°
Saturation (HSL)23.4%
Lightness9.22%
Dominant channelGreen
Hex per channelR 12 · G 1D · B 18

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Every value on this page was computed from “121d18” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.