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Colour

#09B4CD

  • #09B4CD
  • Cyan
  • Dark
  • Nearest: Dark turquoise

#09B4CD is a cyan with RGB values 9, 180, 205 and HSL 188°, 92%, 42%. It is a dark colour, so black text on it reaches 8.4:1 contrast (AAA for normal text). The nearest named colour is Dark turquoise.

Colour values

#09B4CD#09B4CD
HEX#09B4CD
RGBrgb(9, 180, 205)
RGB (0–1)0.0353, 0.7059, 0.8039
RGB percentages3.5%, 70.6%, 80.4%
HSLhsl(187.7, 91.6%, 42%)
HSV / HSBhsv(187.7, 95.6%, 80.4%)
CMYK95.6%, 12.2%, 0%, 19.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer636,109
CSS custom property--colour: #09B4CD;

Brightness & contrast

Relative luminance0.37108WCAG 2.x, 0 is black and 1 is white
Perceived brightness154.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.42:1
Contrast with white2.49:1WCAG normal text: Fail
Contrast with black8.42:1WCAG normal text: AAA
Greyscale equivalent#919191
Inverted#F64B32

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A1ADCEno red cones; affects about 1% of men; ΔE 32.3 from the original
Deuteranopia#8A9DCDno green cones; the most common form, about 1% of men; ΔE 33.7 from the original
Tritanopia#00BEBCno blue cones; rare, and affects men and women equally; ΔE 16.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.49:1WCAG large text: Fail
Contrast with black, large text8.42:1WCAG large text: AAA

Named colours

Dark turquoise · ΔE 16.9Sky blue · ΔE 18.4Light seagreen · ΔE 19.2Cadetblue · ΔE 19.4Medium turquoise · ΔE 19.7Dark cyan · ΔE 20.9
Nearest named CSS colourDark turquoise (#00CED1)ΔE 16.92, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CD2209
Analogous#09CD84, #0952CD
Triadic#CD09B4, #B4CD09
Split complementary#CD0952, #CD8409
Tetradic#8409CD, #CD2209, #52CD09

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A7F0FB
Lighter +30%#76E8F9
Lighter +20%#45E0F7
Lighter +10%#14D8F5
Darker −10%#07899C
Darker −20%#055E6B
Darker −30%#03333A
Darker −40%#00080A
More saturated +25%#00BBD6
Less saturated −25%#24A0B2

Channel breakdown

R9
G180
B205
Red9 (3.5%)
Green180 (70.6%)
Blue205 (80.4%)
Hue187.65°
Saturation (HSL)91.59%
Lightness41.96%
Dominant channelBlue
Hex per channelR 09 · G B4 · B CD

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Every value on this page was computed from “09b4cd” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.