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Recognised as Colour

#1BB599

  • #1BB599
  • Cyan
  • Dark
  • Nearest: Light seagreen

#1BB599 is a cyan with RGB values 27, 181, 153 and HSL 169°, 74%, 41%. It is a dark colour, so black text on it reaches 8.1:1 contrast (AAA for normal text). The nearest named colour is Light seagreen.

Colour values

#1BB599#1BB599
HEX#1BB599
RGBrgb(27, 181, 153)
RGB (0–1)0.1059, 0.7098, 0.6
RGB percentages10.6%, 71%, 60%
HSLhsl(169.1, 74%, 40.8%)
HSV / HSBhsv(169.1, 85.1%, 71%)
CMYK85.1%, 0%, 15.5%, 29%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,815,961
CSS custom property--colour: #1BB599;

Brightness & contrast

Relative luminance0.35581WCAG 2.x, 0 is black and 1 is white
Perceived brightness148.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.12:1
Contrast with white2.59:1WCAG normal text: Fail
Contrast with black8.12:1WCAG normal text: AAA
Greyscale equivalent#929292
Inverted#E44A66

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#AEA998no red cones; affects about 1% of men; ΔE 43.3 from the original
Deuteranopia#9B9B9Bno green cones; the most common form, about 1% of men; ΔE 44.2 from the original
Tritanopia#00B7ADno blue cones; rare, and affects men and women equally; ΔE 10.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.59:1WCAG large text: Fail
Contrast with black, large text8.12:1WCAG large text: AAA

Named colours

Light seagreen · ΔE 11.9Medium aquamarine · ΔE 12Turquoise · ΔE 16.9Medium turquoise · ΔE 17.4Dark turquoise · ΔE 19.8Medium seagreen · ΔE 21.1
Nearest named CSS colourLight seagreen (#20B2AA)ΔE 11.92, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B51B37
Analogous#1BB54C, #1B84B5
Triadic#991BB5, #B5991B
Split complementary#B51B84, #B54C1B
Tetradic#4C1BB5, #B51B37, #84B51B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AAF2E5
Lighter +30%#7DECD8
Lighter +20%#51E5CA
Lighter +10%#25DEBD
Darker −10%#148973
Darker −20%#0E5C4E
Darker −30%#073028
Darker −40%#010303
More saturated +25%#01CFAA
Less saturated −25%#359B88

Channel breakdown

R27
G181
B153
Red27 (10.6%)
Green181 (71%)
Blue153 (60%)
Hue169.09°
Saturation (HSL)74.04%
Lightness40.78%
Dominant channelGreen
Hex per channelR 1B · G B5 · B 99

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Every value on this page was computed from “1bb599” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.