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Colour

#057AFF

  • #057AFF
  • Blue
  • Dark
  • Nearest: Royal blue

#057AFF is a blue with RGB values 5, 122, 255 and HSL 212°, 100%, 51%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#057AFF#057AFF
HEX#057AFF
RGBrgb(5, 122, 255)
RGB (0–1)0.0196, 0.4784, 1
RGB percentages2%, 47.8%, 100%
HSLhsl(211.9, 100%, 51%)
HSV / HSBhsv(211.9, 98%, 100%)
CMYK98%, 52.2%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer359,167
CSS custom property--colour: #057AFF;

Brightness & contrast

Relative luminance0.21171WCAG 2.x, 0 is black and 1 is white
Perceived brightness127.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.23:1
Contrast with white4.01:1WCAG normal text: Fail
Contrast with black5.23:1WCAG normal text: AA
Greyscale equivalent#6B6B6B
Inverted#FA8500

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#018AFFno red cones; affects about 1% of men; ΔE 13 from the original
Deuteranopia#0075FCno green cones; the most common form, about 1% of men; ΔE 2.6 from the original
Tritanopia#009BB1no blue cones; rare, and affects men and women equally; ΔE 71.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.01:1WCAG large text: AA
Contrast with black, large text5.23:1WCAG large text: AAA

Named colours

Royal blue · ΔE 10.4Dodgerblue · ΔE 17.4Medium slateblue · ΔE 20.1Slate blue · ΔE 22.1Medium purple · ΔE 27.4Cornflower blue · ΔE 29
Nearest named CSS colourRoyal blue (#4169E1)ΔE 10.43, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FF8A05
Analogous#05F7FF, #0D05FF
Triadic#FF057A, #7AFF05
Split complementary#FF0D05, #F7FF05
Tetradic#FF05F7, #FF8A05, #05FF0D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D1E7FF
Lighter +30%#9ECBFF
Lighter +20%#6BB0FF
Lighter +10%#3895FF
Darker −10%#0062D1
Darker −20%#004A9E
Darker −30%#00326B
Darker −40%#001A38
More saturated +25%#057AFF
Less saturated −25%#247CE0

Channel breakdown

R5
G122
B255
Red5 (2%)
Green122 (47.8%)
Blue255 (100%)
Hue211.92°
Saturation (HSL)100%
Lightness50.98%
Dominant channelBlue
Hex per channelR 05 · G 7A · B FF

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