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Colour

#01B1D4

  • #01B1D4
  • Cyan
  • Dark
  • Nearest: Deep skyblue

#01B1D4 is a cyan with RGB values 1, 177, 212 and HSL 190°, 99%, 42%. It is a dark colour, so black text on it reaches 8.2:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#01B1D4#01B1D4
HEX#01B1D4
RGBrgb(1, 177, 212)
RGB (0–1)0.0039, 0.6941, 0.8314
RGB percentages0.4%, 69.4%, 83.1%
HSLhsl(190, 99.1%, 41.8%)
HSV / HSBhsv(190, 99.5%, 83.1%)
CMYK99.5%, 16.5%, 0%, 16.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer111,060
CSS custom property--colour: #01B1D4;

Brightness & contrast

Relative luminance0.36204WCAG 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 8.24:1
Contrast with white2.55:1WCAG normal text: Fail
Contrast with black8.24:1WCAG normal text: AAA
Greyscale equivalent#8E8E8E
Inverted#FE4E2B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#9BACD6no red cones; affects about 1% of men; ΔE 29.4 from the original
Deuteranopia#839BD4no green cones; the most common form, about 1% of men; ΔE 31.2 from the original
Tritanopia#00BDBCno blue cones; rare, and affects men and women equally; ΔE 22.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.55:1WCAG large text: Fail
Contrast with black, large text8.24:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 17.2Sky blue · ΔE 17.7Light skyblue · ΔE 19.4Cadetblue · ΔE 22.2Dark turquoise · ΔE 22.6Dark cyan · ΔE 24.7
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 17.19, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D42401
Analogous#01D48E, #0147D4
Triadic#D401B1, #B1D401
Split complementary#D40147, #D48E01
Tetradic#8E01D4, #D42401, #47D401

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A2EFFF
Lighter +30%#70E7FE
Lighter +20%#3DDEFE
Lighter +10%#0AD5FE
Darker −10%#0187A1
Darker −20%#015C6E
Darker −30%#00323C
Darker −40%#000709
More saturated +25%#00B2D5
Less saturated −25%#1C9FB9

Channel breakdown

R1
G177
B212
Red1 (0.4%)
Green177 (69.4%)
Blue212 (83.1%)
Hue189.95°
Saturation (HSL)99.06%
Lightness41.76%
Dominant channelBlue
Hex per channelR 01 · G B1 · B D4

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Every value on this page was computed from “01b1d4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.