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Colour

#253C5D

  • #253C5D
  • Blue
  • Dark
  • Nearest: Dark slate grey

#253C5D is a blue with RGB values 37, 60, 93 and HSL 215°, 43%, 25%. It is a dark colour, so white text on it reaches 11.2:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#253C5D#253C5D
HEX#253C5D
RGBrgb(37, 60, 93)
RGB (0–1)0.1451, 0.2353, 0.3647
RGB percentages14.5%, 23.5%, 36.5%
HSLhsl(215.4, 43.1%, 25.5%)
HSV / HSBhsv(215.4, 60.2%, 36.5%)
CMYK60.2%, 35.5%, 0%, 63.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,440,285
CSS custom property--colour: #253C5D;

Brightness & contrast

Relative luminance0.04415WCAG 2.x, 0 is black and 1 is white
Perceived brightness59.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.15:1
Contrast with white11.15:1WCAG normal text: AAA
Contrast with black1.88:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#DAC3A2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2F3E5Eno red cones; affects about 1% of men; ΔE 2.6 from the original
Deuteranopia#27395Cno green cones; the most common form, about 1% of men; ΔE 2.5 from the original
Tritanopia#014348no blue cones; rare, and affects men and women equally; ΔE 23.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.15:1WCAG large text: AAA
Contrast with black, large text1.88:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 24.1Dim grey · ΔE 29.7Steel blue · ΔE 29.8Slate grey · ΔE 30.6Dark slateblue · ΔE 31.5Light slate grey · ΔE 33.2
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 24.11, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5D4625
Analogous#25585D, #2A255D
Triadic#5D253C, #3C5D25
Split complementary#5D2A25, #585D25
Tetradic#5D2558, #5D4625, #255D2A

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#81A0CD
Lighter +30%#5D85BE
Lighter +20%#426BA6
Lighter +10%#345481
Darker −10%#162439
Darker −20%#080D14
Darker −30%#000000
Darker −40%#000000
More saturated +25%#15396D
Less saturated −25%#353F4D

Channel breakdown

R37
G60
B93
Red37 (14.5%)
Green60 (23.5%)
Blue93 (36.5%)
Hue215.36°
Saturation (HSL)43.08%
Lightness25.49%
Dominant channelBlue
Hex per channelR 25 · G 3C · B 5D

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Every value on this page was computed from “253c5d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.