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Recognised as Colour

#187D8E

  • #187D8E
  • Cyan
  • Dark
  • Nearest: Teal

#187D8E is a cyan with RGB values 24, 125, 142 and HSL 189°, 71%, 33%. It is a dark colour, so white text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Teal.

Colour values

#187D8E#187D8E
HEX#187D8E
RGBrgb(24, 125, 142)
RGB (0–1)0.0941, 0.4902, 0.5569
RGB percentages9.4%, 49%, 55.7%
HSLhsl(188.6, 71.1%, 32.5%)
HSV / HSBhsv(188.6, 83.1%, 55.7%)
CMYK83.1%, 12%, 0%, 44.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,605,006
CSS custom property--colour: #187D8E;

Brightness & contrast

Relative luminance0.16814WCAG 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 4.81:1
Contrast with white4.81:1WCAG normal text: AA
Contrast with black4.36:1WCAG normal text: Fail
Greyscale equivalent#696969
Inverted#E78271

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#70788Fno red cones; affects about 1% of men; ΔE 23.8 from the original
Deuteranopia#606D8Eno green cones; the most common form, about 1% of men; ΔE 24.7 from the original
Tritanopia#008482no blue cones; rare, and affects men and women equally; ΔE 13.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.81:1WCAG large text: AAA
Contrast with black, large text4.36:1WCAG large text: AA

Named colours

Teal · ΔE 11.6Dark cyan · ΔE 13.2Cadetblue · ΔE 16.3Slate grey · ΔE 20.6Light slate grey · ΔE 21.3Steel blue · ΔE 23.2
Nearest named CSS colourTeal (#008080)ΔE 11.57, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8E2918
Analogous#188E64, #18428E
Triadic#8E187D, #7D8E18
Split complementary#8E1842, #8E6418
Tetradic#64188E, #8E2918, #428E18

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#87DCEB
Lighter +30%#5CD0E3
Lighter +20%#30C3DC
Lighter +10%#1FA3BA
Darker −10%#115762
Darker −20%#093037
Darker −30%#020A0B
Darker −40%#000000
More saturated +25%#038CA3
Less saturated −25%#2D6E79

Channel breakdown

R24
G125
B142
Red24 (9.4%)
Green125 (49%)
Blue142 (55.7%)
Hue188.64°
Saturation (HSL)71.08%
Lightness32.55%
Dominant channelBlue
Hex per channelR 18 · G 7D · B 8E

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Every value on this page was computed from “187d8e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.