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Recognised as Colour

#001C1B

  • #001C1B
  • Cyan
  • Dark
  • Nearest: Black

#001C1B is a cyan with RGB values 0, 28, 27 and HSL 178°, 100%, 5%. It is a dark colour, so white text on it reaches 17.8:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#001C1B#001C1B
HEX#001C1B
RGBrgb(0, 28, 27)
RGB (0–1)0, 0.1098, 0.1059
RGB percentages0%, 11%, 10.6%
HSLhsl(177.9, 100%, 5.5%)
HSV / HSBhsv(177.9, 100%, 11%)
CMYK100%, 0%, 3.6%, 89%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer7,195
CSS custom property--colour: #001C1B;

Brightness & contrast

Relative luminance0.0091WCAG 2.x, 0 is black and 1 is white
Perceived brightness23.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.77:1
Contrast with white17.77:1WCAG normal text: AAA
Contrast with black1.18:1WCAG normal text: Fail
Greyscale equivalent#161616
Inverted#FFE3E4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#191A1Bno red cones; affects about 1% of men; ΔE 10.3 from the original
Deuteranopia#15171Bno green cones; the most common form, about 1% of men; ΔE 10.5 from the original
Tritanopia#001D1Cno blue cones; rare, and affects men and women equally; ΔE 0.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.77:1WCAG large text: AAA
Contrast with black, large text1.18:1WCAG large text: Fail

Named colours

Black · ΔE 13.4Dark slate grey · ΔE 23.1Dim grey · ΔE 37.7Teal · ΔE 44.5Slate grey · ΔE 46.1Gray · ΔE 46.6
Nearest named CSS colourBlack (#000000)ΔE 13.41, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#1C0001
Analogous#001C0D, #000F1C
Triadic#1B001C, #1C1B00
Split complementary#1C000F, #1C0D00
Tetradic#0D001C, #1C0001, #0F1C00

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#00E8E0
Lighter +30%#00B5AF
Lighter +20%#00827D
Lighter +10%#004F4C
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#001C1B
Less saturated −25%#041818

Channel breakdown

R0
G28
B27
Red0 (0%)
Green28 (11%)
Blue27 (10.6%)
Hue177.86°
Saturation (HSL)100%
Lightness5.49%
Dominant channelGreen
Hex per channelR 00 · G 1C · B 1B

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Every value on this page was computed from “001c1b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.