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Recognised as Colour

#04B2EF

  • #04B2EF
  • Cyan
  • Dark
  • Nearest: Deep skyblue

#04B2EF is a cyan with RGB values 4, 178, 239 and HSL 196°, 97%, 48%. It is a dark colour, so black text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#04B2EF#04B2EF
HEX#04B2EF
RGBrgb(4, 178, 239)
RGB (0–1)0.0157, 0.698, 0.9373
RGB percentages1.6%, 69.8%, 93.7%
HSLhsl(195.6, 96.7%, 47.6%)
HSV / HSBhsv(195.6, 98.3%, 93.7%)
CMYK98.3%, 25.5%, 0%, 6.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer307,951
CSS custom property--colour: #04B2EF;

Brightness & contrast

Relative luminance0.38099WCAG 2.x, 0 is black and 1 is white
Perceived brightness158.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.62:1
Contrast with white2.44:1WCAG normal text: Fail
Contrast with black8.62:1WCAG normal text: AAA
Greyscale equivalent#919191
Inverted#FB4D10

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#93B0F2no red cones; affects about 1% of men; ΔE 23.4 from the original
Deuteranopia#789EEEno green cones; the most common form, about 1% of men; ΔE 25.3 from the original
Tritanopia#00C2C7no blue cones; rare, and affects men and women equally; ΔE 34.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.44:1WCAG large text: Fail
Contrast with black, large text8.62:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 5Light skyblue · ΔE 17.8Steel blue · ΔE 21.6Sky blue · ΔE 22.6Cornflower blue · ΔE 27.7Light steelblue · ΔE 31.5
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 4.96, a close match
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#EF4104
Analogous#04EFB7, #043CEF
Triadic#EF04B2, #B2EF04
Split complementary#EF043C, #EFB704
Tetradic#B704EF, #EF4104, #3CEF04

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C1EEFE
Lighter +30%#8FE1FD
Lighter +20%#5DD3FC
Lighter +10%#2BC5FB
Darker −10%#038DBD
Darker −20%#02678B
Darker −30%#014259
Darker −40%#011D26
More saturated +25%#00B4F3
Less saturated −25%#22A3D1

Channel breakdown

R4
G178
B239
Red4 (1.6%)
Green178 (69.8%)
Blue239 (93.7%)
Hue195.57°
Saturation (HSL)96.71%
Lightness47.65%
Dominant channelBlue
Hex per channelR 04 · G B2 · B EF

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Every value on this page was computed from “04b2ef” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.