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Colour

#188A7A

  • #188A7A
  • Cyan
  • Dark
  • Nearest: Dark cyan

#188A7A is a cyan with RGB values 24, 138, 122 and HSL 172°, 70%, 32%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Dark cyan.

Colour values

#188A7A#188A7A
HEX#188A7A
RGBrgb(24, 138, 122)
RGB (0–1)0.0941, 0.5412, 0.4784
RGB percentages9.4%, 54.1%, 47.8%
HSLhsl(171.6, 70.4%, 31.8%)
HSV / HSBhsv(171.6, 82.6%, 54.1%)
CMYK82.6%, 0%, 11.6%, 45.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,608,314
CSS custom property--colour: #188A7A;

Brightness & contrast

Relative luminance0.19776WCAG 2.x, 0 is black and 1 is white
Perceived brightness114.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.96:1
Contrast with white4.24:1WCAG normal text: Fail
Contrast with black4.96:1WCAG normal text: AA
Greyscale equivalent#717171
Inverted#E77585

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#848179no red cones; affects about 1% of men; ΔE 33.9 from the original
Deuteranopia#75767Bno green cones; the most common form, about 1% of men; ΔE 34.7 from the original
Tritanopia#008D85no blue cones; rare, and affects men and women equally; ΔE 5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.24:1WCAG large text: AA
Contrast with black, large text4.96:1WCAG large text: AAA

Named colours

Dark cyan · ΔE 9.6Teal · ΔE 10.4Light seagreen · ΔE 16Cadetblue · ΔE 18.6Sea green · ΔE 20.9Medium aquamarine · ΔE 25.9
Nearest named CSS colourDark cyan (#008B8B)ΔE 9.56, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8A1828
Analogous#188A41, #18618A
Triadic#7A188A, #8A7A18
Split complementary#8A1861, #8A4118
Tetradic#41188A, #8A1828, #618A18

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#84EADB
Lighter +30%#59E2CF
Lighter +20%#2DDBC2
Lighter +10%#20B5A0
Darker −10%#105F54
Darker −20%#09332D
Darker −30%#010807
Darker −40%#000000
More saturated +25%#049E89
Less saturated −25%#2C766B

Channel breakdown

R24
G138
B122
Red24 (9.4%)
Green138 (54.1%)
Blue122 (47.8%)
Hue171.58°
Saturation (HSL)70.37%
Lightness31.76%
Dominant channelGreen
Hex per channelR 18 · G 8A · B 7A

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Every value on this page was computed from “188a7a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.