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Recognised as Colour

#1B9584

  • #1B9584
  • Cyan
  • Dark
  • Nearest: Dark cyan

#1B9584 is a cyan with RGB values 27, 149, 132 and HSL 172°, 69%, 35%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Dark cyan.

Colour values

#1B9584#1B9584
HEX#1B9584
RGBrgb(27, 149, 132)
RGB (0–1)0.1059, 0.5843, 0.5176
RGB percentages10.6%, 58.4%, 51.8%
HSLhsl(171.6, 69.3%, 34.5%)
HSV / HSBhsv(171.6, 81.9%, 58.4%)
CMYK81.9%, 0%, 11.4%, 41.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,807,748
CSS custom property--colour: #1B9584;

Brightness & contrast

Relative luminance0.23394WCAG 2.x, 0 is black and 1 is white
Perceived brightness123.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.68:1
Contrast with white3.7:1WCAG normal text: Fail
Contrast with black5.68:1WCAG normal text: AA
Greyscale equivalent#7A7A7A
Inverted#E46A7B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#8E8C83no red cones; affects about 1% of men; ΔE 35.3 from the original
Deuteranopia#7E8085no green cones; the most common form, about 1% of men; ΔE 36.2 from the original
Tritanopia#009890no blue cones; rare, and affects men and women equally; ΔE 5.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.7:1WCAG large text: AA
Contrast with black, large text5.68:1WCAG large text: AAA

Named colours

Dark cyan · ΔE 10.8Light seagreen · ΔE 12.2Teal · ΔE 13Cadetblue · ΔE 18.5Sea green · ΔE 20.9Medium aquamarine · ΔE 22.1
Nearest named CSS colourDark cyan (#008B8B)ΔE 10.76, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#951B2C
Analogous#1B9547, #1B6995
Triadic#841B95, #95841B
Split complementary#951B69, #95471B
Tetradic#471B95, #951B2C, #69951B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#91EBDE
Lighter +30%#66E3D2
Lighter +20%#3BDBC5
Lighter +10%#23C0AA
Darker −10%#136A5E
Darker −20%#0B3F37
Darker −30%#041311
Darker −40%#000000
More saturated +25%#05AB94
Less saturated −25%#317F74

Channel breakdown

R27
G149
B132
Red27 (10.6%)
Green149 (58.4%)
Blue132 (51.8%)
Hue171.64°
Saturation (HSL)69.32%
Lightness34.51%
Dominant channelGreen
Hex per channelR 1B · G 95 · B 84

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Every value on this page was computed from “1b9584” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.