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Recognised as Colour

#2153BA

  • #2153BA
  • Blue
  • Dark
  • Nearest: Royal blue

#2153BA is a blue with RGB values 33, 83, 186 and HSL 220°, 70%, 43%. It is a dark colour, so white text on it reaches 7:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#2153BA#2153BA
HEX#2153BA
RGBrgb(33, 83, 186)
RGB (0–1)0.1294, 0.3255, 0.7294
RGB percentages12.9%, 32.5%, 72.9%
HSLhsl(220.4, 69.9%, 42.9%)
HSV / HSBhsv(220.4, 82.3%, 72.9%)
CMYK82.3%, 55.4%, 0%, 27.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,184,122
CSS custom property--colour: #2153BA;

Brightness & contrast

Relative luminance0.10055WCAG 2.x, 0 is black and 1 is white
Perceived brightness91.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.97:1
Contrast with white6.97:1WCAG normal text: AA
Contrast with black3.01:1WCAG normal text: Fail
Greyscale equivalent#505050
Inverted#DEAC45

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0061BEno red cones; affects about 1% of men; ΔE 10.8 from the original
Deuteranopia#0053B8no green cones; the most common form, about 1% of men; ΔE 2.7 from the original
Tritanopia#006D7Eno blue cones; rare, and affects men and women equally; ΔE 59.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.97:1WCAG large text: AAA
Contrast with black, large text3.01:1WCAG large text: AA

Named colours

Royal blue · ΔE 12.4Slate blue · ΔE 15.6Dark slateblue · ΔE 18.7Medium purple · ΔE 24Rebecca purple · ΔE 24.2Medium slateblue · ΔE 24.4
Nearest named CSS colourRoyal blue (#4169E1)ΔE 12.39, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#BA8821
Analogous#21A0BA, #3B21BA
Triadic#BA2153, #53BA21
Split complementary#BA3B21, #A0BA21
Tetradic#BA21A0, #BA8821, #21BA3B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B5C9F2
Lighter +30%#8AA9EA
Lighter +20%#5E8AE3
Lighter +10%#336ADB
Darker −10%#19408F
Darker −20%#122C63
Darker −30%#0A1938
Darker −40%#02060D
More saturated +25%#064AD5
Less saturated −25%#3C5C9F

Channel breakdown

R33
G83
B186
Red33 (12.9%)
Green83 (32.5%)
Blue186 (72.9%)
Hue220.39°
Saturation (HSL)69.86%
Lightness42.94%
Dominant channelBlue
Hex per channelR 21 · G 53 · B BA

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Every value on this page was computed from “2153ba” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.