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Recognised as Colour

#02255A

  • #02255A
  • Blue
  • Dark
  • Nearest: Dark slateblue

#02255A is a blue with RGB values 2, 37, 90 and HSL 216°, 96%, 18%. It is a dark colour, so white text on it reaches 14.8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#02255A#02255A
HEX#02255A
RGBrgb(2, 37, 90)
RGB (0–1)0.0078, 0.1451, 0.3529
RGB percentages0.8%, 14.5%, 35.3%
HSLhsl(216.1, 95.7%, 18%)
HSV / HSBhsv(216.1, 97.8%, 35.3%)
CMYK97.8%, 58.9%, 0%, 64.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer140,634
CSS custom property--colour: #02255A;

Brightness & contrast

Relative luminance0.02074WCAG 2.x, 0 is black and 1 is white
Perceived brightness41.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.84:1
Contrast with white14.84:1WCAG normal text: AAA
Contrast with black1.41:1WCAG normal text: Fail
Greyscale equivalent#212121
Inverted#FDDAA5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002C5Cno red cones; affects about 1% of men; ΔE 5.7 from the original
Deuteranopia#002459no green cones; the most common form, about 1% of men; ΔE 0.5 from the original
Tritanopia#00323Bno blue cones; rare, and affects men and women equally; ΔE 34.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.84:1WCAG large text: AAA
Contrast with black, large text1.41:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 21.7Midnight blue · ΔE 24.5Rebecca purple · ΔE 37.3Steel blue · ΔE 40.1Black · ΔE 40.3Dark slate grey · ΔE 42.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 21.71, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5A3702
Analogous#02515A, #0B025A
Triadic#5A0225, #255A02
Split complementary#5A0B02, #515A02
Tetradic#5A0251, #5A3702, #025A0B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#2E7FFA
Lighter +30%#0563F0
Lighter +20%#044EBE
Lighter +10%#033A8C
Darker −10%#011028
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00255C
Less saturated −25%#0E274F

Channel breakdown

R2
G37
B90
Red2 (0.8%)
Green37 (14.5%)
Blue90 (35.3%)
Hue216.14°
Saturation (HSL)95.65%
Lightness18.04%
Dominant channelBlue
Hex per channelR 02 · G 25 · B 5A

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Every value on this page was computed from “02255a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.