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Colour

#252F6A

  • #252F6A
  • Blue
  • Dark
  • Nearest: Dark slateblue

#252F6A is a blue with RGB values 37, 47, 106 and HSL 231°, 48%, 28%. It is a dark colour, so white text on it reaches 12.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#252F6A#252F6A
HEX#252F6A
RGBrgb(37, 47, 106)
RGB (0–1)0.1451, 0.1843, 0.4157
RGB percentages14.5%, 18.4%, 41.6%
HSLhsl(231.3, 48.3%, 28%)
HSV / HSBhsv(231.3, 65.1%, 41.6%)
CMYK65.1%, 55.7%, 0%, 58.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,436,970
CSS custom property--colour: #252F6A;

Brightness & contrast

Relative luminance0.03467WCAG 2.x, 0 is black and 1 is white
Perceived brightness54.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.4:1
Contrast with white12.4:1WCAG normal text: AAA
Contrast with black1.69:1WCAG normal text: Fail
Greyscale equivalent#313131
Inverted#DAD095

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0B376Cno red cones; affects about 1% of men; ΔE 8.9 from the original
Deuteranopia#003169no green cones; the most common form, about 1% of men; ΔE 6.7 from the original
Tritanopia#003D47no blue cones; rare, and affects men and women equally; ΔE 38.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.4:1WCAG large text: AAA
Contrast with black, large text1.69:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 14.7Midnight blue · ΔE 21.5Rebecca purple · ΔE 31Steel blue · ΔE 36.9Slate blue · ΔE 37.7Indigo · ΔE 39.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 14.69, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6A6025
Analogous#25516A, #3E256A
Triadic#6A252F, #2F6A25
Split complementary#6A3E25, #516A25
Tetradic#6A2552, #6A6025, #256A3E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8692D5
Lighter +30%#606FC8
Lighter +20%#3F51B6
Lighter +10%#324090
Darker −10%#181E44
Darker −20%#0B0D1E
Darker −30%#000000
Darker −40%#000000
More saturated +25%#13227C
Less saturated −25%#373C58

Channel breakdown

R37
G47
B106
Red37 (14.5%)
Green47 (18.4%)
Blue106 (41.6%)
Hue231.3°
Saturation (HSL)48.25%
Lightness28.04%
Dominant channelBlue
Hex per channelR 25 · G 2F · B 6A

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Every value on this page was computed from “252f6a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.