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Recognised as Colour

#022557

  • #022557
  • Blue
  • Dark
  • Nearest: Dark slateblue

#022557 is a blue with RGB values 2, 37, 87 and HSL 215°, 96%, 17%. It is a dark colour, so white text on it reaches 14.9:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#022557#022557
HEX#022557
RGBrgb(2, 37, 87)
RGB (0–1)0.0078, 0.1451, 0.3412
RGB percentages0.8%, 14.5%, 34.1%
HSLhsl(215.3, 95.5%, 17.5%)
HSV / HSBhsv(215.3, 97.7%, 34.1%)
CMYK97.7%, 57.5%, 0%, 65.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer140,631
CSS custom property--colour: #022557;

Brightness & contrast

Relative luminance0.02024WCAG 2.x, 0 is black and 1 is white
Perceived brightness40.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.95:1
Contrast with white14.95:1WCAG normal text: AAA
Contrast with black1.4:1WCAG normal text: Fail
Greyscale equivalent#212121
Inverted#FDDAA8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002B59no red cones; affects about 1% of men; ΔE 4.8 from the original
Deuteranopia#002356no green cones; the most common form, about 1% of men; ΔE 1.3 from the original
Tritanopia#00313Ano blue cones; rare, and affects men and women equally; ΔE 32.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.95:1WCAG large text: AAA
Contrast with black, large text1.4:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 23.3Midnight blue · ΔE 26.6Black · ΔE 38.4Rebecca purple · ΔE 39.1Steel blue · ΔE 39.7Dark slate grey · ΔE 40.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 23.35, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#573402
Analogous#025057, #090257
Triadic#570225, #255702
Split complementary#570A02, #4F5702
Tetradic#570250, #573402, #02570A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#2B80FA
Lighter +30%#0565ED
Lighter +20%#044FBB
Lighter +10%#033A89
Darker −10%#011025
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#002559
Less saturated −25%#0D274C

Channel breakdown

R2
G37
B87
Red2 (0.8%)
Green37 (14.5%)
Blue87 (34.1%)
Hue215.29°
Saturation (HSL)95.51%
Lightness17.45%
Dominant channelBlue
Hex per channelR 02 · G 25 · B 57

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Every value on this page was computed from “hex 022557” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.