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Colour

#253C75

  • #253C75
  • Blue
  • Dark
  • Nearest: Dark slateblue

#253C75 is a blue with RGB values 37, 60, 117 and HSL 223°, 52%, 30%. It is a dark colour, so white text on it reaches 10.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#253C75#253C75
HEX#253C75
RGBrgb(37, 60, 117)
RGB (0–1)0.1451, 0.2353, 0.4588
RGB percentages14.5%, 23.5%, 45.9%
HSLhsl(222.8, 51.9%, 30.2%)
HSV / HSBhsv(222.8, 68.4%, 45.9%)
CMYK68.4%, 48.7%, 0%, 54.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,440,309
CSS custom property--colour: #253C75;

Brightness & contrast

Relative luminance0.04909WCAG 2.x, 0 is black and 1 is white
Perceived brightness63.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.6:1
Contrast with white10.6:1WCAG normal text: AAA
Contrast with black1.98:1WCAG normal text: Fail
Greyscale equivalent#3B3B3B
Inverted#DAC38A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1F4277no red cones; affects about 1% of men; ΔE 4.9 from the original
Deuteranopia#103B74no green cones; the most common form, about 1% of men; ΔE 3.3 from the original
Tritanopia#004952no blue cones; rare, and affects men and women equally; ΔE 36.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.6:1WCAG large text: AAA
Contrast with black, large text1.98:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 16.7Midnight blue · ΔE 27Steel blue · ΔE 30.4Rebecca purple · ΔE 34.2Cornflower blue · ΔE 38.1Slate blue · ΔE 38.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 16.7, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#755E25
Analogous#256475, #362575
Triadic#75253C, #3C7525
Split complementary#753625, #647525
Tetradic#752564, #755E25, #257536

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8CA2DA
Lighter +30%#6583CE
Lighter +20%#3E64C2
Lighter +10%#31509C
Darker −10%#19284E
Darker −20%#0C1428
Darker −30%#000001
Darker −40%#000000
More saturated +25%#123488
Less saturated −25%#384462

Channel breakdown

R37
G60
B117
Red37 (14.5%)
Green60 (23.5%)
Blue117 (45.9%)
Hue222.75°
Saturation (HSL)51.95%
Lightness30.2%
Dominant channelBlue
Hex per channelR 25 · G 3C · B 75

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Every value on this page was computed from “253c75” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.