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Recognised as Colour

#1B2525

  • #1B2525
  • Cyan
  • Dark
  • Nearest: Black

#1B2525 is a cyan with RGB values 27, 37, 37 and HSL 180°, 16%, 13%. It is a dark colour, so white text on it reaches 15.7:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#1B2525#1B2525
HEX#1B2525
RGBrgb(27, 37, 37)
RGB (0–1)0.1059, 0.1451, 0.1451
RGB percentages10.6%, 14.5%, 14.5%
HSLhsl(180, 15.6%, 12.5%)
HSV / HSBhsv(180, 27%, 14.5%)
CMYK27%, 0%, 0%, 85.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,778,981
CSS custom property--colour: #1B2525;

Brightness & contrast

Relative luminance0.0169WCAG 2.x, 0 is black and 1 is white
Perceived brightness34.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.7:1
Contrast with white15.7:1WCAG normal text: AAA
Contrast with black1.34:1WCAG normal text: Fail
Greyscale equivalent#232323
Inverted#E4DADA

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#242425no red cones; affects about 1% of men; ΔE 4.7 from the original
Deuteranopia#222225no green cones; the most common form, about 1% of men; ΔE 5.2 from the original
Tritanopia#182625no blue cones; rare, and affects men and women equally; ΔE 1.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.7:1WCAG large text: AAA
Contrast with black, large text1.34:1WCAG large text: Fail

Named colours

Black · ΔE 14.5Dark slate grey · ΔE 19.1Dim grey · ΔE 31Gray · ΔE 40.1Slate grey · ΔE 40.2Teal · ΔE 42.9
Nearest named CSS colourBlack (#000000)ΔE 14.52, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#251B1B
Analogous#1B2520, #1B2025
Triadic#251B25, #25251B
Split complementary#251B20, #25201B
Tetradic#201B25, #251B1B, #20251B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#739999
Lighter +30%#5C7D7D
Lighter +20%#466060
Lighter +10%#314242
Darker −10%#050808
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#132D2D
Less saturated −25%#202020

Channel breakdown

R27
G37
B37
Red27 (10.6%)
Green37 (14.5%)
Blue37 (14.5%)
Hue180°
Saturation (HSL)15.63%
Lightness12.55%
Dominant channelGreen and Blue
Hex per channelR 1B · G 25 · B 25

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Every value on this page was computed from “1b2525” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.