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Colour

#057E9B

  • #057E9B
  • Cyan
  • Dark
  • Nearest: Steel blue

#057E9B is a cyan with RGB values 5, 126, 155 and HSL 192°, 94%, 31%. It is a dark colour, so white text on it reaches 4.7:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#057E9B#057E9B
HEX#057E9B
RGBrgb(5, 126, 155)
RGB (0–1)0.0196, 0.4941, 0.6078
RGB percentages2%, 49.4%, 60.8%
HSLhsl(191.6, 93.7%, 31.4%)
HSV / HSBhsv(191.6, 96.8%, 60.8%)
CMYK96.8%, 18.7%, 0%, 39.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer360,091
CSS custom property--colour: #057E9B;

Brightness & contrast

Relative luminance0.17321WCAG 2.x, 0 is black and 1 is white
Perceived brightness109.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.7:1
Contrast with white4.7:1WCAG normal text: AA
Contrast with black4.46:1WCAG normal text: Fail
Greyscale equivalent#666666
Inverted#FA8164

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6D7B9Cno red cones; affects about 1% of men; ΔE 21.7 from the original
Deuteranopia#5B6E9Bno green cones; the most common form, about 1% of men; ΔE 23.5 from the original
Tritanopia#008787no blue cones; rare, and affects men and women equally; ΔE 19.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.7:1WCAG large text: AAA
Contrast with black, large text4.46:1WCAG large text: AA

Named colours

Steel blue · ΔE 16.9Teal · ΔE 18.6Dark cyan · ΔE 19.6Cadetblue · ΔE 20.6Slate grey · ΔE 21.2Light slate grey · ΔE 21.6
Nearest named CSS colourSteel blue (#4682B4)ΔE 16.93, a distinctly different colour
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9B2205
Analogous#059B6D, #05339B
Triadic#9B057E, #7E9B05
Split complementary#9B0533, #9B6D05
Tetradic#6D059B, #9B2205, #339B05

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#72E0FA
Lighter +30%#40D5F9
Lighter +20%#0FCAF7
Lighter +10%#07A6CC
Darker −10%#03566A
Darker −20%#022E38
Darker −30%#000607
Darker −40%#000000
More saturated +25%#0081A0
Less saturated −25%#197287

Channel breakdown

R5
G126
B155
Red5 (2%)
Green126 (49.4%)
Blue155 (60.8%)
Hue191.6°
Saturation (HSL)93.75%
Lightness31.37%
Dominant channelBlue
Hex per channelR 05 · G 7E · B 9B

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Every value on this page was computed from “057e9b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.