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Colour

#004951

  • #004951
  • Cyan
  • Dark
  • Nearest: Dark slate grey

#004951 is a cyan with RGB values 0, 73, 81 and HSL 186°, 100%, 16%. It is a dark colour, so white text on it reaches 10.1:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#004951#004951
HEX#004951
RGBrgb(0, 73, 81)
RGB (0–1)0, 0.2863, 0.3176
RGB percentages0%, 28.6%, 31.8%
HSLhsl(185.9, 100%, 15.9%)
HSV / HSBhsv(185.9, 100%, 31.8%)
CMYK100%, 9.9%, 0%, 68.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer18,769
CSS custom property--colour: #004951;

Brightness & contrast

Relative luminance0.05359WCAG 2.x, 0 is black and 1 is white
Perceived brightness62.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.14:1
Contrast with white10.14:1WCAG normal text: AAA
Contrast with black2.07:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#FFB6AE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#414652no red cones; affects about 1% of men; ΔE 17.8 from the original
Deuteranopia#373E51no green cones; the most common form, about 1% of men; ΔE 18.9 from the original
Tritanopia#004D4Bno blue cones; rare, and affects men and women equally; ΔE 7.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.14:1WCAG large text: AAA
Contrast with black, large text2.07:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 9Teal · ΔE 24Dim grey · ΔE 25.7Dark cyan · ΔE 28.3Slate grey · ΔE 28.9Light slate grey · ΔE 31.6
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 8.99, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#510800
Analogous#005130, #002151
Triadic#510049, #495100
Split complementary#510021, #513100
Tetradic#300051, #510800, #215100

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#1EE9FF
Lighter +30%#00D3EA
Lighter +20%#00A5B7
Lighter +10%#007784
Darker −10%#001B1E
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#004951
Less saturated −25%#0A4147

Channel breakdown

R0
G73
B81
Red0 (0%)
Green73 (28.6%)
Blue81 (31.8%)
Hue185.93°
Saturation (HSL)100%
Lightness15.88%
Dominant channelBlue
Hex per channelR 00 · G 49 · B 51

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Every value on this page was computed from “hex 004951” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.