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Recognised as Colour

#043937

  • #043937
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#043937 is a cyan with RGB values 4, 57, 55 and HSL 178°, 87%, 12%. It is a dark colour, so white text on it reaches 12.8:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#043937#043937
HEX#043937
RGBrgb(4, 57, 55)
RGB (0–1)0.0157, 0.2235, 0.2157
RGB percentages1.6%, 22.4%, 21.6%
HSLhsl(177.7, 86.9%, 12%)
HSV / HSBhsv(177.7, 93%, 22.4%)
CMYK93%, 0%, 3.5%, 77.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer276,791
CSS custom property--colour: #043937;

Brightness & contrast

Relative luminance0.03228WCAG 2.x, 0 is black and 1 is white
Perceived brightness47.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.76:1
Contrast with white12.76:1WCAG normal text: AAA
Contrast with black1.65:1WCAG normal text: Fail
Greyscale equivalent#2E2E2E
Inverted#FBC6C8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#353537no red cones; affects about 1% of men; ΔE 17.3 from the original
Deuteranopia#2E3037no green cones; the most common form, about 1% of men; ΔE 17.6 from the original
Tritanopia#003B38no blue cones; rare, and affects men and women equally; ΔE 1.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.76:1WCAG large text: AAA
Contrast with black, large text1.65:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 11.4Black · ΔE 27Dim grey · ΔE 29Teal · ΔE 30.3Dark cyan · ΔE 34.7Slate grey · ΔE 35.8
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 11.44, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#390406
Analogous#04391D, #042039
Triadic#370439, #393704
Split complementary#390420, #391D04
Tetradic#1D0439, #390406, #203904

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#1AEFE7
Lighter +30%#0EC8C1
Lighter +20%#0B9893
Lighter +10%#076965
Darker −10%#010909
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003D3B
Less saturated −25%#0C3130

Channel breakdown

R4
G57
B55
Red4 (1.6%)
Green57 (22.4%)
Blue55 (21.6%)
Hue177.74°
Saturation (HSL)86.89%
Lightness11.96%
Dominant channelGreen
Hex per channelR 04 · G 39 · B 37

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Every value on this page was computed from “hex 043937” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.