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Recognised as Colour

#057BF8

  • #057BF8
  • Blue
  • Dark
  • Nearest: Royal blue

#057BF8 is a blue with RGB values 5, 123, 248 and HSL 211°, 96%, 50%. 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

#057BF8#057BF8
HEX#057BF8
RGBrgb(5, 123, 248)
RGB (0–1)0.0196, 0.4824, 0.9725
RGB percentages2%, 48.2%, 97.3%
HSLhsl(210.9, 96%, 49.6%)
HSV / HSBhsv(210.9, 98%, 97.3%)
CMYK98%, 50.4%, 0%, 2.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer359,416
CSS custom property--colour: #057BF8;

Brightness & contrast

Relative luminance0.20975WCAG 2.x, 0 is black and 1 is white
Perceived brightness126.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.2:1
Contrast with white4.04:1WCAG normal text: Fail
Contrast with black5.2:1WCAG normal text: AA
Greyscale equivalent#6B6B6B
Inverted#FA8407

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2389FDno red cones; affects about 1% of men; ΔE 8.4 from the original
Deuteranopia#0075F6no green cones; the most common form, about 1% of men; ΔE 3.9 from the original
Tritanopia#009AAEno blue cones; rare, and affects men and women equally; ΔE 67.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.04:1WCAG large text: AA
Contrast with black, large text5.2:1WCAG large text: AAA

Named colours

Royal blue · ΔE 9.8Dodgerblue · ΔE 13.1Slate blue · ΔE 22Medium slateblue · ΔE 22.2Cornflower blue · ΔE 24.7Medium purple · ΔE 26.5
Nearest named CSS colourRoyal blue (#4169E1)ΔE 9.8, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#F88205
Analogous#05F4F8, #0905F8
Triadic#F8057B, #7BF805
Split complementary#F80905, #F5F805
Tetradic#F805F4, #F88205, #05F809

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CBE4FE
Lighter +30%#99CAFD
Lighter +20%#67AFFC
Lighter +10%#3595FB
Darker −10%#0462C6
Darker −20%#034994
Darker −30%#023162
Darker −40%#011830
More saturated +25%#007BFD
Less saturated −25%#257CD8

Channel breakdown

R5
G123
B248
Red5 (2%)
Green123 (48.2%)
Blue248 (97.3%)
Hue210.86°
Saturation (HSL)96.05%
Lightness49.61%
Dominant channelBlue
Hex per channelR 05 · G 7B · B F8

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Every value on this page was computed from “057bf8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.