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Colour

#00A1EF

  • #00A1EF
  • Cyan
  • Dark
  • Nearest: Deep skyblue

#00A1EF is a cyan with RGB values 0, 161, 239 and HSL 200°, 100%, 47%. It is a dark colour, so black text on it reaches 7.3:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#00A1EF#00A1EF
HEX#00A1EF
RGBrgb(0, 161, 239)
RGB (0–1)0, 0.6314, 0.9373
RGB percentages0%, 63.1%, 93.7%
HSLhsl(199.6, 100%, 46.9%)
HSV / HSBhsv(199.6, 100%, 93.7%)
CMYK100%, 32.6%, 0%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer41,455
CSS custom property--colour: #00A1EF;

Brightness & contrast

Relative luminance0.31722WCAG 2.x, 0 is black and 1 is white
Perceived brightness147.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.34:1
Contrast with white2.86:1WCAG normal text: Fail
Contrast with black7.34:1WCAG normal text: AAA
Greyscale equivalent#848484
Inverted#FF5E10

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#7BA3F2no red cones; affects about 1% of men; ΔE 16 from the original
Deuteranopia#5D90EEno green cones; the most common form, about 1% of men; ΔE 18.9 from the original
Tritanopia#00B4BDno blue cones; rare, and affects men and women equally; ΔE 43.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.86:1WCAG large text: Fail
Contrast with black, large text7.34:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 15.5Cornflower blue · ΔE 16.4Steel blue · ΔE 19.8Dodgerblue · ΔE 22.8Light skyblue · ΔE 26.4Sky blue · ΔE 32.7
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 15.48, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EF4E00
Analogous#00EFC5, #002AEF
Triadic#EF00A1, #A1EF00
Split complementary#EF002A, #EFC500
Tetradic#C500EF, #EF4E00, #2AEF00

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BCE9FF
Lighter +30%#89D8FF
Lighter +20%#56C8FF
Lighter +10%#23B7FF
Darker −10%#007FBC
Darker −20%#005C89
Darker −30%#003A56
Darker −40%#001823
More saturated +25%#00A1EF
Less saturated −25%#1E97D1

Channel breakdown

R0
G161
B239
Red0 (0%)
Green161 (63.1%)
Blue239 (93.7%)
Hue199.58°
Saturation (HSL)100%
Lightness46.86%
Dominant channelBlue
Hex per channelR 00 · G A1 · B EF

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Every value on this page was computed from “00a1ef” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.