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Recognised as Colour

#04ACD8

  • #04ACD8
  • Cyan
  • Dark
  • Nearest: Deep skyblue

#04ACD8 is a cyan with RGB values 4, 172, 216 and HSL 192°, 96%, 43%. It is a dark colour, so black text on it reaches 7.9:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#04ACD8#04ACD8
HEX#04ACD8
RGBrgb(4, 172, 216)
RGB (0–1)0.0157, 0.6745, 0.8471
RGB percentages1.6%, 67.5%, 84.7%
HSLhsl(192.5, 96.4%, 43.1%)
HSV / HSBhsv(192.5, 98.1%, 84.7%)
CMYK98.1%, 20.4%, 0%, 15.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer306,392
CSS custom property--colour: #04ACD8;

Brightness & contrast

Relative luminance0.34489WCAG 2.x, 0 is black and 1 is white
Perceived brightness150.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.9:1
Contrast with white2.66:1WCAG normal text: Fail
Contrast with black7.9:1WCAG normal text: AAA
Greyscale equivalent#8B8B8B
Inverted#FB5327

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#93A8DAno red cones; affects about 1% of men; ΔE 26.3 from the original
Deuteranopia#7B97D7no green cones; the most common form, about 1% of men; ΔE 28.2 from the original
Tritanopia#00B9BAno blue cones; rare, and affects men and women equally; ΔE 26.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.66:1WCAG large text: Fail
Contrast with black, large text7.9:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 12.8Light skyblue · ΔE 18.2Sky blue · ΔE 18.9Steel blue · ΔE 21.4Cadetblue · ΔE 25.5Dark cyan · ΔE 28.5
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 12.84, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D83004
Analogous#04D89A, #0442D8
Triadic#D804AC, #ACD804
Split complementary#D80442, #D89A04
Tetradic#9A04D8, #D83004, #42D804

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ABECFD
Lighter +30%#78E1FD
Lighter +20%#46D6FC
Lighter +10%#14CBFB
Darker −10%#0384A6
Darker −20%#025C74
Darker −30%#013442
Darker −40%#000D10
More saturated +25%#00AEDC
Less saturated −25%#209CBC

Channel breakdown

R4
G172
B216
Red4 (1.6%)
Green172 (67.5%)
Blue216 (84.7%)
Hue192.45°
Saturation (HSL)96.36%
Lightness43.14%
Dominant channelBlue
Hex per channelR 04 · G AC · B D8

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Every value on this page was computed from “04acd8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.