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Colour

#057BBF

  • #057BBF
  • Blue
  • Dark
  • Nearest: Steel blue

#057BBF is a blue with RGB values 5, 123, 191 and HSL 202°, 95%, 38%. It is a dark colour, so black text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#057BBF#057BBF
HEX#057BBF
RGBrgb(5, 123, 191)
RGB (0–1)0.0196, 0.4824, 0.749
RGB percentages2%, 48.2%, 74.9%
HSLhsl(201.9, 94.9%, 38.4%)
HSV / HSBhsv(201.9, 97.4%, 74.9%)
CMYK97.4%, 35.6%, 0%, 25.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer359,359
CSS custom property--colour: #057BBF;

Brightness & contrast

Relative luminance0.1796WCAG 2.x, 0 is black and 1 is white
Perceived brightness114.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.59:1
Contrast with white4.57:1WCAG normal text: AA
Contrast with black4.59:1WCAG normal text: AA
Greyscale equivalent#676767
Inverted#FA8440

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5A7EC2no red cones; affects about 1% of men; ΔE 11.3 from the original
Deuteranopia#416FBEno green cones; the most common form, about 1% of men; ΔE 13.3 from the original
Tritanopia#008C94no blue cones; rare, and affects men and women equally; ΔE 39.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.57:1WCAG large text: AAA
Contrast with black, large text4.59:1WCAG large text: AAA

Named colours

Steel blue · ΔE 11.6Cornflower blue · ΔE 18.5Dodgerblue · ΔE 25.8Deep skyblue · ΔE 27.4Light slate grey · ΔE 32.9Slate grey · ΔE 33
Nearest named CSS colourSteel blue (#4682B4)ΔE 11.64, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BF4905
Analogous#05BFA6, #051EBF
Triadic#BF057B, #7BBF05
Split complementary#BF051E, #BFA605
Tetradic#A605BF, #BF4905, #1EBF05

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#94D6FC
Lighter +30%#62C3FB
Lighter +20%#30B0FA
Lighter +10%#069BF1
Darker −10%#045B8D
Darker −20%#023B5C
Darker −30%#011B2A
Darker −40%#000000
More saturated +25%#007CC4
Less saturated −25%#1E74A7

Channel breakdown

R5
G123
B191
Red5 (2%)
Green123 (48.2%)
Blue191 (74.9%)
Hue201.94°
Saturation (HSL)94.9%
Lightness38.43%
Dominant channelBlue
Hex per channelR 05 · G 7B · B BF

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