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Colour

#12817D

  • #12817D
  • Cyan
  • Dark
  • Nearest: Teal

#12817D is a cyan with RGB values 18, 129, 125 and HSL 178°, 76%, 29%. It is a dark colour, so white text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Teal.

Colour values

#12817D#12817D
HEX#12817D
RGBrgb(18, 129, 125)
RGB (0–1)0.0706, 0.5059, 0.4902
RGB percentages7.1%, 50.6%, 49%
HSLhsl(177.8, 75.5%, 28.8%)
HSV / HSBhsv(177.8, 86%, 50.6%)
CMYK86%, 0%, 3.1%, 49.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,212,797
CSS custom property--colour: #12817D;

Brightness & contrast

Relative luminance0.1731WCAG 2.x, 0 is black and 1 is white
Perceived brightness107.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.71:1
Contrast with white4.71:1WCAG normal text: AA
Contrast with black4.46:1WCAG normal text: Fail
Greyscale equivalent#696969
Inverted#ED7E82

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#797A7Dno red cones; affects about 1% of men; ΔE 29.9 from the original
Deuteranopia#6A6F7Eno green cones; the most common form, about 1% of men; ΔE 30.8 from the original
Tritanopia#008580no blue cones; rare, and affects men and women equally; ΔE 2.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.71:1WCAG large text: AAA
Contrast with black, large text4.46:1WCAG large text: AA

Named colours

Teal · ΔE 2.4Dark cyan · ΔE 4.8Cadetblue · ΔE 15.8Light seagreen · ΔE 19Dark slate grey · ΔE 24.8Slate grey · ΔE 27.8
Nearest named CSS colourTeal (#008080)ΔE 2.43, a close match
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#811216
Analogous#128145, #124E81
Triadic#7D1281, #817D12
Split complementary#81124E, #814512
Tetradic#451281, #811216, #4E8112

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#73ECE7
Lighter +30%#47E5E0
Lighter +20%#1EDBD4
Lighter +10%#18AEA8
Darker −10%#0C5452
Darker −20%#062726
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00938E
Less saturated −25%#246F6C

Channel breakdown

R18
G129
B125
Red18 (7.1%)
Green129 (50.6%)
Blue125 (49%)
Hue177.84°
Saturation (HSL)75.51%
Lightness28.82%
Dominant channelGreen
Hex per channelR 12 · G 81 · B 7D

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Every value on this page was computed from “12817d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.