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Recognised as Colour

#004151

  • #004151
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#004151 is a cyan with RGB values 0, 65, 81 and HSL 192°, 100%, 16%. It is a dark colour, so white text on it reaches 11.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#004151#004151
HEX#004151
RGBrgb(0, 65, 81)
RGB (0–1)0, 0.2549, 0.3176
RGB percentages0%, 25.5%, 31.8%
HSLhsl(191.9, 100%, 15.9%)
HSV / HSBhsv(191.9, 100%, 31.8%)
CMYK100%, 19.8%, 0%, 68.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,721
CSS custom property--colour: #004151;

Brightness & contrast

Relative luminance0.04375WCAG 2.x, 0 is black and 1 is white
Perceived brightness56.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.2:1
Contrast with white11.2:1WCAG normal text: AAA
Contrast with black1.87:1WCAG normal text: Fail
Greyscale equivalent#343434
Inverted#FFBEAE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#373F52no red cones; affects about 1% of men; ΔE 14 from the original
Deuteranopia#2D3851no green cones; the most common form, about 1% of men; ΔE 14.9 from the original
Tritanopia#004646no blue cones; rare, and affects men and women equally; ΔE 11.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.2:1WCAG large text: AAA
Contrast with black, large text1.87:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 12.8Dim grey · ΔE 27.2Teal · ΔE 29.6Slate grey · ΔE 29.9Black · ΔE 31.3Light slate grey · ΔE 32.7
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 12.82, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#511000
Analogous#005139, #001851
Triadic#510041, #415100
Split complementary#510018, #513800
Tetradic#390051, #511000, #185100

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#1ED3FF
Lighter +30%#00BCEA
Lighter +20%#0093B7
Lighter +10%#006A84
Darker −10%#00181E
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#004151
Less saturated −25%#0A3B47

Channel breakdown

R0
G65
B81
Red0 (0%)
Green65 (25.5%)
Blue81 (31.8%)
Hue191.85°
Saturation (HSL)100%
Lightness15.88%
Dominant channelBlue
Hex per channelR 00 · G 41 · B 51

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Every value on this page was computed from “hex 004151” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.