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Colour

#215FB1

  • #215FB1
  • Blue
  • Dark
  • Nearest: Dark slateblue

#215FB1 is a blue with RGB values 33, 95, 177 and HSL 214°, 69%, 41%. It is a dark colour, so white text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#215FB1#215FB1
HEX#215FB1
RGBrgb(33, 95, 177)
RGB (0–1)0.1294, 0.3725, 0.6941
RGB percentages12.9%, 37.3%, 69.4%
HSLhsl(214.2, 68.6%, 41.2%)
HSV / HSBhsv(214.2, 81.4%, 69.4%)
CMYK81.4%, 46.3%, 0%, 30.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,187,185
CSS custom property--colour: #215FB1;

Brightness & contrast

Relative luminance0.11682WCAG 2.x, 0 is black and 1 is white
Perceived brightness95.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.29:1
Contrast with white6.29:1WCAG normal text: AA
Contrast with black3.34:1WCAG normal text: Fail
Greyscale equivalent#585858
Inverted#DEA04E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#3367B4no red cones; affects about 1% of men; ΔE 4.8 from the original
Deuteranopia#0C5AAFno green cones; the most common form, about 1% of men; ΔE 3 from the original
Tritanopia#00737Fno blue cones; rare, and affects men and women equally; ΔE 48.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.29:1WCAG large text: AAA
Contrast with black, large text3.34:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 19.4Cornflower blue · ΔE 21.3Royal blue · ΔE 23.4Dodgerblue · ΔE 23.5Steel blue · ΔE 25.5Slate blue · ΔE 27
Nearest named CSS colourDark slateblue (#483D8B)ΔE 19.44, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B17321
Analogous#21A7B1, #2B21B1
Triadic#B1215F, #5FB121
Split complementary#B12B21, #A7B121
Tetradic#B121A7, #B17321, #21B12B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#AECAF0
Lighter +30%#83AEE8
Lighter +20%#5893E0
Lighter +10%#2D77D8
Darker −10%#194886
Darker −20%#11315B
Darker −30%#091A30
Darker −40%#010305
More saturated +25%#075BCB
Less saturated −25%#3B6397

Channel breakdown

R33
G95
B177
Red33 (12.9%)
Green95 (37.3%)
Blue177 (69.4%)
Hue214.17°
Saturation (HSL)68.57%
Lightness41.18%
Dominant channelBlue
Hex per channelR 21 · G 5F · B B1

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Every value on this page was computed from “215fb1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.