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Recognised as Colour

#004C41

  • #004C41
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#004C41 is a cyan with RGB values 0, 76, 65 and HSL 171°, 100%, 15%. It is a dark colour, so white text on it reaches 10:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#004C41#004C41
HEX#004C41
RGBrgb(0, 76, 65)
RGB (0–1)0, 0.298, 0.2549
RGB percentages0%, 29.8%, 25.5%
HSLhsl(171.3, 100%, 14.9%)
HSV / HSBhsv(171.3, 100%, 29.8%)
CMYK100%, 0%, 14.5%, 70.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer19,521
CSS custom property--colour: #004C41;

Brightness & contrast

Relative luminance0.05551WCAG 2.x, 0 is black and 1 is white
Perceived brightness62.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.95:1
Contrast with white9.95:1WCAG normal text: AAA
Contrast with black2.11:1WCAG normal text: Fail
Greyscale equivalent#3B3B3B
Inverted#FFB3BE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#484641no red cones; affects about 1% of men; ΔE 23.8 from the original
Deuteranopia#3F4042no green cones; the most common form, about 1% of men; ΔE 23.9 from the original
Tritanopia#004D49no blue cones; rare, and affects men and women equally; ΔE 4.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.95:1WCAG large text: AAA
Contrast with black, large text2.11:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 13.2Teal · ΔE 22.6Dark cyan · ΔE 26.7Dim grey · ΔE 28.8Dark olivegreen · ΔE 33.4Cadetblue · ΔE 34.1
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 13.18, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4C000B
Analogous#004C1B, #00314C
Triadic#41004C, #4C4100
Split complementary#4C0031, #4C1B00
Tetradic#1B004C, #4C000B, #314C00

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#19FFDE
Lighter +30%#00E5C4
Lighter +20%#00B298
Lighter +10%#007F6D
Darker −10%#001915
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#004C41
Less saturated −25%#0A423A

Channel breakdown

R0
G76
B65
Red0 (0%)
Green76 (29.8%)
Blue65 (25.5%)
Hue171.32°
Saturation (HSL)100%
Lightness14.9%
Dominant channelGreen
Hex per channelR 00 · G 4C · B 41

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Every value on this page was computed from “004c41” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.