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Recognised as Colour

#01B9DC

  • #01B9DC
  • Cyan
  • Dark
  • Nearest: Sky blue

#01B9DC is a cyan with RGB values 1, 185, 220 and HSL 190°, 99%, 43%. It is a dark colour, so black text on it reaches 9:1 contrast (AAA for normal text). The nearest named colour is Sky blue.

Colour values

#01B9DC#01B9DC
HEX#01B9DC
RGBrgb(1, 185, 220)
RGB (0–1)0.0039, 0.7255, 0.8627
RGB percentages0.4%, 72.5%, 86.3%
HSLhsl(189.6, 99.1%, 43.3%)
HSV / HSBhsv(189.6, 99.5%, 86.3%)
CMYK99.5%, 15.9%, 0%, 13.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer113,116
CSS custom property--colour: #01B9DC;

Brightness & contrast

Relative luminance0.39872WCAG 2.x, 0 is black and 1 is white
Perceived brightness160 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.97:1
Contrast with white2.34:1WCAG normal text: Fail
Contrast with black8.97:1WCAG normal text: AAA
Greyscale equivalent#949494
Inverted#FE4623

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A3B3DEno red cones; affects about 1% of men; ΔE 31.1 from the original
Deuteranopia#8AA2DCno green cones; the most common form, about 1% of men; ΔE 32.6 from the original
Tritanopia#00C5C4no blue cones; rare, and affects men and women equally; ΔE 22.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.34:1WCAG large text: Fail
Contrast with black, large text8.97:1WCAG large text: AAA

Named colours

Sky blue · ΔE 16.9Deep skyblue · ΔE 16.9Light skyblue · ΔE 18.8Dark turquoise · ΔE 21Cadetblue · ΔE 23.6Medium turquoise · ΔE 24.1
Nearest named CSS colourSky blue (#87CEEB)ΔE 16.89, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DC2401
Analogous#01DC92, #014BDC
Triadic#DC01B9, #B9DC01
Split complementary#DC014B, #DC9201
Tetradic#9201DC, #DC2401, #4BDC01

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AAF1FF
Lighter +30%#78E9FE
Lighter +20%#45E1FE
Lighter +10%#12D8FE
Darker −10%#018EA9
Darker −20%#016476
Darker −30%#003944
Darker −40%#000E11
More saturated +25%#00BADD
Less saturated −25%#1DA6C0

Channel breakdown

R1
G185
B220
Red1 (0.4%)
Green185 (72.5%)
Blue220 (86.3%)
Hue189.59°
Saturation (HSL)99.1%
Lightness43.33%
Dominant channelBlue
Hex per channelR 01 · G B9 · B DC

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Every value on this page was computed from “01b9dc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.