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Colour

#00BFFF

  • #00BFFF
  • Cyan
  • Dark
  • Named: Deep skyblue

#00BFFF is the CSS colour cyan with RGB values 0, 191, 255 and HSL 195°, 100%, 50%. It is a dark colour, so black text on it reaches 9.9:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#00BFFF#00BFFF
HEX#00BFFF
RGBrgb(0, 191, 255)
RGB (0–1)0, 0.749, 1
RGB percentages0%, 74.9%, 100%
HSLhsl(195.1, 100%, 50%)
HSV / HSBhsv(195.1, 100%, 100%)
CMYK100%, 25.1%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer49,151
CSS custom property--colour: #00BFFF;

Brightness & contrast

Relative luminance0.44482WCAG 2.x, 0 is black and 1 is white
Perceived brightness169.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.9:1
Contrast with white2.12:1WCAG normal text: Fail
Contrast with black9.9:1WCAG normal text: AAA
Greyscale equivalent#9B9B9B
Inverted#FF4000

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#9EBDFFno red cones; affects about 1% of men; ΔE 24.3 from the original
Deuteranopia#81A9FEno green cones; the most common form, about 1% of men; ΔE 27.3 from the original
Tritanopia#00D0D5no blue cones; rare, and affects men and women equally; ΔE 35.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.12:1WCAG large text: Fail
Contrast with black, large text9.9:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 0Light skyblue · ΔE 17.2Sky blue · ΔE 22.5Steel blue · ΔE 26.4Cornflower blue · ΔE 29.8Light steelblue · ΔE 32.4
This is a named CSS colourDeep skyblue (#00BFFF)exact match
Hue familycyan
CSS keyword usabledeepskyblue

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF4000
Analogous#00FFBF, #0040FF
Triadic#FF00BF, #BFFF00
Split complementary#FF0040, #FFC000
Tetradic#BF00FF, #FF4000, #40FF00

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CCF2FF
Lighter +30%#99E5FF
Lighter +20%#66D9FF
Lighter +10%#33CCFF
Darker −10%#0099CC
Darker −20%#007399
Darker −30%#004C66
Darker −40%#002633
More saturated +25%#00BFFF
Less saturated −25%#20AFDF

Channel breakdown

R0
G191
B255
Red0 (0%)
Green191 (74.9%)
Blue255 (100%)
Hue195.06°
Saturation (HSL)100%
Lightness50%
Dominant channelBlue
Hex per channelR 00 · G BF · B FF

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