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Recognised as Colour

#215FAA

  • #215FAA
  • Blue
  • Dark
  • Nearest: Dark slateblue

#215FAA is a blue with RGB values 33, 95, 170 and HSL 213°, 67%, 40%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#215FAA#215FAA
HEX#215FAA
RGBrgb(33, 95, 170)
RGB (0–1)0.1294, 0.3725, 0.6667
RGB percentages12.9%, 37.3%, 66.7%
HSLhsl(212.8, 67.5%, 39.8%)
HSV / HSBhsv(212.8, 80.6%, 66.7%)
CMYK80.6%, 44.1%, 0%, 33.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,187,178
CSS custom property--colour: #215FAA;

Brightness & contrast

Relative luminance0.1141WCAG 2.x, 0 is black and 1 is white
Perceived brightness94.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.4:1
Contrast with white6.4:1WCAG normal text: AA
Contrast with black3.28:1WCAG normal text: Fail
Greyscale equivalent#575757
Inverted#DEA055

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3966ADno red cones; affects about 1% of men; ΔE 4.4 from the original
Deuteranopia#1D59A9no green cones; the most common form, about 1% of men; ΔE 4.5 from the original
Tritanopia#00717Cno blue cones; rare, and affects men and women equally; ΔE 44.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.4:1WCAG large text: AAA
Contrast with black, large text3.28:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 20.6Steel blue · ΔE 22Cornflower blue · ΔE 22Dodgerblue · ΔE 26.1Royal blue · ΔE 27.7Slate blue · ΔE 30.8
Nearest named CSS colourDark slateblue (#483D8B)ΔE 20.57, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AA6C21
Analogous#21A4AA, #2721AA
Triadic#AA215F, #5FAA21
Split complementary#AA2721, #A4AA21
Tetradic#AA21A4, #AA6C21, #21AA27

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A9C8EE
Lighter +30%#7EADE6
Lighter +20%#5392DE
Lighter +10%#2977D5
Darker −10%#19477F
Darker −20%#102F55
Darker −30%#08172A
Darker −40%#000000
More saturated +25%#085DC3
Less saturated −25%#3A6191

Channel breakdown

R33
G95
B170
Red33 (12.9%)
Green95 (37.3%)
Blue170 (66.7%)
Hue212.85°
Saturation (HSL)67.49%
Lightness39.8%
Dominant channelBlue
Hex per channelR 21 · G 5F · B AA

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Every value on this page was computed from “215faa” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.