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Recognised as Colour

#28ACE3

  • #28ACE3
  • Cyan
  • Dark
  • Nearest: Deep skyblue

#28ACE3 is a cyan with RGB values 40, 172, 227 and HSL 198°, 77%, 52%. It is a dark colour, so black text on it reaches 8.1:1 contrast (AAA for normal text). The nearest named colour is Deep skyblue.

Colour values

#28ACE3#28ACE3
HEX#28ACE3
RGBrgb(40, 172, 227)
RGB (0–1)0.1569, 0.6745, 0.8902
RGB percentages15.7%, 67.5%, 89%
HSLhsl(197.6, 77%, 52.4%)
HSV / HSBhsv(197.6, 82.4%, 89%)
CMYK82.4%, 24.2%, 0%, 11%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,665,699
CSS custom property--colour: #28ACE3;

Brightness & contrast

Relative luminance0.35502WCAG 2.x, 0 is black and 1 is white
Perceived brightness154 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.1:1
Contrast with white2.59:1WCAG normal text: Fail
Contrast with black8.1:1WCAG normal text: AAA
Greyscale equivalent#949494
Inverted#D7531C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#90AAE6no red cones; affects about 1% of men; ΔE 21.9 from the original
Deuteranopia#7899E2no green cones; the most common form, about 1% of men; ΔE 23.9 from the original
Tritanopia#00BBBFno blue cones; rare, and affects men and women equally; ΔE 32.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.59:1WCAG large text: Fail
Contrast with black, large text8.1:1WCAG large text: AAA

Named colours

Deep skyblue · ΔE 8.5Light skyblue · ΔE 16.9Steel blue · ΔE 18.6Sky blue · ΔE 20.7Cornflower blue · ΔE 27.9Light steelblue · ΔE 29
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 8.54, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#E35F28
Analogous#28E3BC, #284FE3
Triadic#E328AC, #ACE328
Split complementary#E3284F, #E3BC28
Tetradic#BC28E3, #E35F28, #4FE328

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#DCF2FB
Lighter +30%#AFE0F5
Lighter +20%#82CFEF
Lighter +10%#55BDE9
Darker −10%#198EBF
Darker −20%#136D92
Darker −30%#0D4B65
Darker −40%#072938
More saturated +25%#0CB8FF
Less saturated −25%#469FC5

Channel breakdown

R40
G172
B227
Red40 (15.7%)
Green172 (67.5%)
Blue227 (89%)
Hue197.65°
Saturation (HSL)76.95%
Lightness52.35%
Dominant channelBlue
Hex per channelR 28 · G AC · B E3

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Every value on this page was computed from “28ace3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.