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Recognised as Colour

#04313D

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

#04313D is a cyan with RGB values 4, 49, 61 and HSL 193°, 88%, 13%. 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

#04313D#04313D
HEX#04313D
RGBrgb(4, 49, 61)
RGB (0–1)0.0157, 0.1922, 0.2392
RGB percentages1.6%, 19.2%, 23.9%
HSLhsl(192.6, 87.7%, 12.7%)
HSV / HSBhsv(192.6, 93.4%, 23.9%)
CMYK93.4%, 19.7%, 0%, 76.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer274,749
CSS custom property--colour: #04313D;

Brightness & contrast

Relative luminance0.02559WCAG 2.x, 0 is black and 1 is white
Perceived brightness42.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.89:1
Contrast with white13.89:1WCAG normal text: AAA
Contrast with black1.51:1WCAG normal text: Fail
Greyscale equivalent#282828
Inverted#FBCEC2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2A2F3Eno red cones; affects about 1% of men; ΔE 11.7 from the original
Deuteranopia#222A3Dno green cones; the most common form, about 1% of men; ΔE 12 from the original
Tritanopia#003535no blue cones; rare, and affects men and women equally; ΔE 9.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.89:1WCAG large text: AAA
Contrast with black, large text1.51:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 15.5Black · ΔE 23.6Dim grey · ΔE 30.3Slate grey · ΔE 35.4Teal · ΔE 35.9Light slate grey · ΔE 38.4
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 15.48, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3D1004
Analogous#043D2D, #04143D
Triadic#3D0431, #313D04
Split complementary#3D0414, #3D2D04
Tetradic#2D043D, #3D1004, #143D04

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#1DC4F0
Lighter +30%#0DA4CD
Lighter +20%#0A7E9D
Lighter +10%#07576D
Darker −10%#010B0D
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003341
Less saturated −25%#0C2C35

Channel breakdown

R4
G49
B61
Red4 (1.6%)
Green49 (19.2%)
Blue61 (23.9%)
Hue192.63°
Saturation (HSL)87.69%
Lightness12.75%
Dominant channelBlue
Hex per channelR 04 · G 31 · B 3D

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