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Recognised as Colour

#03B5FF

  • #03B5FF
  • Cyan
  • Dark
  • Nearest: Deep skyblue

#03B5FF is a cyan with RGB values 3, 181, 255 and HSL 198°, 100%, 51%. It is a dark colour, so black text on it reaches 9.1:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#03B5FF#03B5FF
HEX#03B5FF
RGBrgb(3, 181, 255)
RGB (0–1)0.0118, 0.7098, 1
RGB percentages1.2%, 71%, 100%
HSLhsl(197.6, 100%, 50.6%)
HSV / HSBhsv(197.6, 98.8%, 100%)
CMYK98.8%, 29%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer243,199
CSS custom property--colour: #03B5FF;

Brightness & contrast

Relative luminance0.40287WCAG 2.x, 0 is black and 1 is white
Perceived brightness163.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.06:1
Contrast with white2.32:1WCAG normal text: Fail
Contrast with black9.06:1WCAG normal text: AAA
Greyscale equivalent#959595
Inverted#FC4A00

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#91B5FFno red cones; affects about 1% of men; ΔE 20.3 from the original
Deuteranopia#73A1FEno green cones; the most common form, about 1% of men; ΔE 23.5 from the original
Tritanopia#00C8CFno blue cones; rare, and affects men and women equally; ΔE 41.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.32:1WCAG large text: Fail
Contrast with black, large text9.06:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 7.6Light skyblue · ΔE 21.1Cornflower blue · ΔE 23Steel blue · ΔE 24.2Sky blue · ΔE 27.6Dodgerblue · ΔE 29.4
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 7.61, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF4D03
Analogous#03FFCB, #0337FF
Triadic#FF03B5, #B5FF03
Split complementary#FF0337, #FFCB03
Tetradic#CB03FF, #FF4D03, #37FF03

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CFF1FF
Lighter +30%#9CE2FF
Lighter +20%#69D3FF
Lighter +10%#36C4FF
Darker −10%#0092CF
Darker −20%#006E9C
Darker −30%#004A69
Darker −40%#002636
More saturated +25%#03B5FF
Less saturated −25%#22A8E0

Channel breakdown

R3
G181
B255
Red3 (1.2%)
Green181 (71%)
Blue255 (100%)
Hue197.62°
Saturation (HSL)100%
Lightness50.59%
Dominant channelBlue
Hex per channelR 03 · G B5 · B FF

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Every value on this page was computed from “03b5ff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.