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Recognised as Colour

#04313A

  • #04313A
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#04313A is a cyan with RGB values 4, 49, 58 and HSL 190°, 87%, 12%. It is a dark colour, so white text on it reaches 13.9:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#04313A#04313A
HEX#04313A
RGBrgb(4, 49, 58)
RGB (0–1)0.0157, 0.1922, 0.2275
RGB percentages1.6%, 19.2%, 22.7%
HSLhsl(190, 87.1%, 12.2%)
HSV / HSBhsv(190, 93.1%, 22.7%)
CMYK93.1%, 15.5%, 0%, 77.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer274,746
CSS custom property--colour: #04313A;

Brightness & contrast

Relative luminance0.02528WCAG 2.x, 0 is black and 1 is white
Perceived brightness42.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.95:1
Contrast with white13.95:1WCAG normal text: AAA
Contrast with black1.51:1WCAG normal text: Fail
Greyscale equivalent#282828
Inverted#FBCEC5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2B2F3Bno red cones; affects about 1% of men; ΔE 12.5 from the original
Deuteranopia#242A3Ano green cones; the most common form, about 1% of men; ΔE 12.9 from the original
Tritanopia#003434no blue cones; rare, and affects men and women equally; ΔE 7.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.95:1WCAG large text: AAA
Contrast with black, large text1.51:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 14.6Black · ΔE 23.2Dim grey · ΔE 30.1Teal · ΔE 35.2Slate grey · ΔE 35.9Gray · ΔE 38.4
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 14.61, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3A0D04
Analogous#043A28, #04163A
Triadic#3A0431, #313A04
Split complementary#3A0416, #3A2804
Tetradic#28043A, #3A0D04, #163A04

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#1BCCEF
Lighter +30%#0EAAC9
Lighter +20%#0B8299
Lighter +10%#07596A
Darker −10%#01090A
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00343E
Less saturated −25%#0C2C32

Channel breakdown

R4
G49
B58
Red4 (1.6%)
Green49 (19.2%)
Blue58 (22.7%)
Hue190°
Saturation (HSL)87.1%
Lightness12.16%
Dominant channelBlue
Hex per channelR 04 · G 31 · B 3A

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Every value on this page was computed from “04313a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.