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Colour

#57A2EC

  • #57A2EC
  • Blue
  • Dark
  • Nearest: Cornflower blue

#57A2EC is a blue with RGB values 87, 162, 236 and HSL 210°, 80%, 63%. It is a dark colour, so black text on it reaches 7.8:1 contrast (AAA for normal text). The nearest named colour is Cornflower blue.

Colour values

#57A2EC#57A2EC
HEX#57A2EC
RGBrgb(87, 162, 236)
RGB (0–1)0.3412, 0.6353, 0.9255
RGB percentages34.1%, 63.5%, 92.5%
HSLhsl(209.8, 79.7%, 63.3%)
HSV / HSBhsv(209.8, 63.1%, 92.5%)
CMYK63.1%, 31.4%, 0%, 7.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,743,340
CSS custom property--colour: #57A2EC;

Brightness & contrast

Relative luminance0.33923WCAG 2.x, 0 is black and 1 is white
Perceived brightness155 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.78:1
Contrast with white2.7:1WCAG normal text: Fail
Contrast with black7.78:1WCAG normal text: AAA
Greyscale equivalent#979797
Inverted#A85D13

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#82A5EFno red cones; affects about 1% of men; ΔE 9.4 from the original
Deuteranopia#6E97EBno green cones; the most common form, about 1% of men; ΔE 11 from the original
Tritanopia#00B3BCno blue cones; rare, and affects men and women equally; ΔE 43.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.7:1WCAG large text: Fail
Contrast with black, large text7.78:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 11.9Steel blue · ΔE 17.5Deep skyblue · ΔE 18.5Dodgerblue · ΔE 22.8Light skyblue · ΔE 23.7Sky blue · ΔE 30.3
Nearest named CSS colourCornflower blue (#6495ED)ΔE 11.87, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#ECA157
Analogous#57ECEC, #5758EC
Triadic#EC57A2, #A2EC57
Split complementary#EC5757, #ECEC57
Tetradic#EC57EC, #ECA157, #58EC57

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#E0EEFC
Lighter +20%#B3D5F6
Lighter +10%#85BBF1
Darker −10%#2989E7
Darker −20%#166FC7
Darker −30%#115599
Darker −40%#0C3C6B
More saturated +25%#44A2FF
Less saturated −25%#6EA2D5

Channel breakdown

R87
G162
B236
Red87 (34.1%)
Green162 (63.5%)
Blue236 (92.5%)
Hue209.8°
Saturation (HSL)79.68%
Lightness63.33%
Dominant channelBlue
Hex per channelR 57 · G A2 · B EC

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Every value on this page was computed from “57a2ec” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.