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Recognised as Colour

#01B3CB

  • #01B3CB
  • Cyan
  • Dark
  • Nearest: Dark turquoise

#01B3CB is a cyan with RGB values 1, 179, 203 and HSL 187°, 99%, 40%. It is a dark colour, so black text on it reaches 8.3:1 contrast (AAA for normal text). The nearest named colour is Dark turquoise.

Colour values

#01B3CB#01B3CB
HEX#01B3CB
RGBrgb(1, 179, 203)
RGB (0–1)0.0039, 0.702, 0.7961
RGB percentages0.4%, 70.2%, 79.6%
HSLhsl(187.1, 99%, 40%)
HSV / HSBhsv(187.1, 99.5%, 79.6%)
CMYK99.5%, 11.8%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer111,563
CSS custom property--colour: #01B3CB;

Brightness & contrast

Relative luminance0.36558WCAG 2.x, 0 is black and 1 is white
Perceived brightness153.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.31:1
Contrast with white2.53:1WCAG normal text: Fail
Contrast with black8.31:1WCAG normal text: AAA
Greyscale equivalent#8F8F8F
Inverted#FE4C34

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#A0ACCCno red cones; affects about 1% of men; ΔE 32.5 from the original
Deuteranopia#899CCBno green cones; the most common form, about 1% of men; ΔE 33.9 from the original
Tritanopia#00BDBAno blue cones; rare, and affects men and women equally; ΔE 16.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.53:1WCAG large text: Fail
Contrast with black, large text8.31:1WCAG large text: AAA

Named colours

Dark turquoise · ΔE 16.6Light seagreen · ΔE 18.6Sky blue · ΔE 19Cadetblue · ΔE 19.1Medium turquoise · ΔE 19.4Dark cyan · ΔE 20.3
Nearest named CSS colourDark turquoise (#00CED1)ΔE 16.58, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CB1901
Analogous#01CB7E, #014ECB
Triadic#CB01B3, #B3CB01
Split complementary#CB014E, #CB7E01
Tetradic#7E01CB, #CB1901, #4ECB01

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9AF3FF
Lighter +30%#67ECFE
Lighter +20%#34E6FE
Lighter +10%#01E0FE
Darker −10%#018698
Darker −20%#005A66
Darker −30%#002D33
Darker −40%#000000
More saturated +25%#00B4CC
Less saturated −25%#1AA0B2

Channel breakdown

R1
G179
B203
Red1 (0.4%)
Green179 (70.2%)
Blue203 (79.6%)
Hue187.13°
Saturation (HSL)99.02%
Lightness40%
Dominant channelBlue
Hex per channelR 01 · G B3 · B CB

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Every value on this page was computed from “01b3cb” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.