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Recognised as Colour

#004158

  • #004158
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#004158 is a cyan with RGB values 0, 65, 88 and HSL 196°, 100%, 17%. It is a dark colour, so white text on it reaches 11.1:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#004158#004158
HEX#004158
RGBrgb(0, 65, 88)
RGB (0–1)0, 0.2549, 0.3451
RGB percentages0%, 25.5%, 34.5%
HSLhsl(195.7, 100%, 17.3%)
HSV / HSBhsv(195.7, 100%, 34.5%)
CMYK100%, 26.1%, 0%, 65.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,728
CSS custom property--colour: #004158;

Brightness & contrast

Relative luminance0.04485WCAG 2.x, 0 is black and 1 is white
Perceived brightness58 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.07:1
Contrast with white11.07:1WCAG normal text: AAA
Contrast with black1.9:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#FFBEA7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#354059no red cones; affects about 1% of men; ΔE 12 from the original
Deuteranopia#2A3858no green cones; the most common form, about 1% of men; ΔE 13.6 from the original
Tritanopia#004749no blue cones; rare, and affects men and women equally; ΔE 15.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.07:1WCAG large text: AAA
Contrast with black, large text1.9:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 16.6Dim grey · ΔE 28.4Slate grey · ΔE 29.6Steel blue · ΔE 30.7Teal · ΔE 32.2Light slate grey · ΔE 32.4
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 16.56, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#581700
Analogous#005843, #001558
Triadic#580041, #415800
Split complementary#580015, #584300
Tetradic#430058, #581700, #155800

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#25C6FF
Lighter +30%#00B2F1
Lighter +20%#008CBE
Lighter +10%#00678B
Darker −10%#001B25
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#004158
Less saturated −25%#0B3C4D

Channel breakdown

R0
G65
B88
Red0 (0%)
Green65 (25.5%)
Blue88 (34.5%)
Hue195.68°
Saturation (HSL)100%
Lightness17.25%
Dominant channelBlue
Hex per channelR 00 · G 41 · B 58

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Every value on this page was computed from “hex 004158” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.