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Colour

#21235E

  • #21235E
  • Blue
  • Dark
  • Nearest: Dark slateblue

#21235E is a blue with RGB values 33, 35, 94 and HSL 238°, 48%, 25%. It is a dark colour, so white text on it reaches 14.3:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#21235E#21235E
HEX#21235E
RGBrgb(33, 35, 94)
RGB (0–1)0.1294, 0.1373, 0.3686
RGB percentages12.9%, 13.7%, 36.9%
HSLhsl(238, 48%, 24.9%)
HSV / HSBhsv(238, 64.9%, 36.9%)
CMYK64.9%, 62.8%, 0%, 63.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,171,742
CSS custom property--colour: #21235E;

Brightness & contrast

Relative luminance0.02334WCAG 2.x, 0 is black and 1 is white
Perceived brightness45.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.32:1
Contrast with white14.32:1WCAG normal text: AAA
Contrast with black1.47:1WCAG normal text: Fail
Greyscale equivalent#272727
Inverted#DEDCA1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002D60no red cones; affects about 1% of men; ΔE 11.1 from the original
Deuteranopia#00285Dno green cones; the most common form, about 1% of men; ΔE 8.5 from the original
Tritanopia#00313Cno blue cones; rare, and affects men and women equally; ΔE 38.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text14.32:1WCAG large text: AAA
Contrast with black, large text1.47:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 16.5Midnight blue · ΔE 18.7Rebecca purple · ΔE 30.6Indigo · ΔE 37Slate blue · ΔE 39.5Navy · ΔE 40.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 16.54, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5E5C21
Analogous#21415E, #3E215E
Triadic#5E2123, #235E21
Split complementary#5E3E21, #425E21
Tetradic#5E2141, #5E5C21, #215E3D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7B7DD0
Lighter +30%#5558C3
Lighter +20%#3C3FA9
Lighter +10%#2E3184
Darker −10%#141538
Darker −20%#060713
Darker −30%#000000
Darker −40%#000000
More saturated +25%#11146E
Less saturated −25%#31324E

Channel breakdown

R33
G35
B94
Red33 (12.9%)
Green35 (13.7%)
Blue94 (36.9%)
Hue238.03°
Saturation (HSL)48.03%
Lightness24.9%
Dominant channelBlue
Hex per channelR 21 · G 23 · B 5E

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Every value on this page was computed from “21235e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.