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Colour

#0057F0

  • #0057F0
  • Blue
  • Dark
  • Nearest: Medium slateblue

#0057F0 is a blue with RGB values 0, 87, 240 and HSL 218°, 100%, 47%. It is a dark colour, so white text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#0057F0#0057F0
HEX#0057F0
RGBrgb(0, 87, 240)
RGB (0–1)0, 0.3412, 0.9412
RGB percentages0%, 34.1%, 94.1%
HSLhsl(218.3, 100%, 47.1%)
HSV / HSBhsv(218.3, 100%, 94.1%)
CMYK100%, 63.7%, 0%, 5.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer22,512
CSS custom property--colour: #0057F0;

Brightness & contrast

Relative luminance0.13108WCAG 2.x, 0 is black and 1 is white
Perceived brightness104.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.8:1
Contrast with white5.8:1WCAG normal text: AA
Contrast with black3.62:1WCAG normal text: Fail
Greyscale equivalent#505050
Inverted#FFA80F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0070F5no red cones; affects about 1% of men; ΔE 17.7 from the original
Deuteranopia#005BEDno green cones; the most common form, about 1% of men; ΔE 4.7 from the original
Tritanopia#00809Cno blue cones; rare, and affects men and women equally; ΔE 82.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.8:1WCAG large text: AAA
Contrast with black, large text3.62:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 18.9Royal blue · ΔE 21.5Slate blue · ΔE 24.3Blue violet · ΔE 31.6Dark blue · ΔE 33.1Dark orchid · ΔE 33.9
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 18.93, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F09900
Analogous#00CFF0, #2100F0
Triadic#F00057, #57F000
Split complementary#F02100, #CFF000
Tetradic#F000CF, #F09900, #00F021

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BDD5FF
Lighter +30%#8AB4FF
Lighter +20%#5794FF
Lighter +10%#2473FF
Darker −10%#0045BD
Darker −20%#00328A
Darker −30%#002057
Darker −40%#000D24
More saturated +25%#0057F0
Less saturated −25%#1E5FD2

Channel breakdown

R0
G87
B240
Red0 (0%)
Green87 (34.1%)
Blue240 (94.1%)
Hue218.25°
Saturation (HSL)100%
Lightness47.06%
Dominant channelBlue
Hex per channelR 00 · G 57 · B F0

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Every value on this page was computed from “0057f0” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.