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Recognised as Colour

#57B2F2

  • #57B2F2
  • Blue
  • Dark
  • Nearest: Deep skyblue

#57B2F2 is a blue with RGB values 87, 178, 242 and HSL 205°, 86%, 65%. 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

#57B2F2#57B2F2
HEX#57B2F2
RGBrgb(87, 178, 242)
RGB (0–1)0.3412, 0.698, 0.949
RGB percentages34.1%, 69.8%, 94.9%
HSLhsl(204.8, 85.6%, 64.5%)
HSV / HSBhsv(204.8, 64%, 94.9%)
CMYK64%, 26.4%, 0%, 5.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,747,442
CSS custom property--colour: #57B2F2;

Brightness & contrast

Relative luminance0.40278WCAG 2.x, 0 is black and 1 is white
Perceived brightness165.9 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#A3A3A3
Inverted#A84D0D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#95B3F5no red cones; affects about 1% of men; ΔE 14.7 from the original
Deuteranopia#80A3F1no green cones; the most common form, about 1% of men; ΔE 16.9 from the original
Tritanopia#00C2C8no blue cones; rare, and affects men and women equally; ΔE 38.9 from the original
Distinguishable without hueYesnever 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 10.5Light skyblue · ΔE 15.5Steel blue · ΔE 19.2Cornflower blue · ΔE 21.1Sky blue · ΔE 22.1Light steelblue · ΔE 27
Nearest named CSS colourDeep skyblue (#00BFFF)ΔE 10.5, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F29757
Analogous#57F2E4, #5765F2
Triadic#F257B2, #B2F257
Split complementary#F25765, #F2E457
Tetradic#E457F2, #F29757, #65F257

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#E5F3FD
Lighter +20%#B6DDF9
Lighter +10%#86C8F6
Darker −10%#289CEE
Darker −20%#1082D3
Darker −30%#0D65A3
Darker −40%#094874
More saturated +25%#4AB4FF
Less saturated −25%#6EAEDB

Channel breakdown

R87
G178
B242
Red87 (34.1%)
Green178 (69.8%)
Blue242 (94.9%)
Hue204.77°
Saturation (HSL)85.64%
Lightness64.51%
Dominant channelBlue
Hex per channelR 57 · G B2 · B F2

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Every value on this page was computed from “57b2f2” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.