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Recognised as Colour

#25356D

  • #25356D
  • Blue
  • Dark
  • Nearest: Dark slateblue

#25356D is a blue with RGB values 37, 53, 109 and HSL 227°, 49%, 29%. It is a dark colour, so white text on it reaches 11.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#25356D#25356D
HEX#25356D
RGBrgb(37, 53, 109)
RGB (0–1)0.1451, 0.2078, 0.4275
RGB percentages14.5%, 20.8%, 42.7%
HSLhsl(226.7, 49.3%, 28.6%)
HSV / HSBhsv(226.7, 66.1%, 42.7%)
CMYK66.1%, 51.4%, 0%, 57.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,438,509
CSS custom property--colour: #25356D;

Brightness & contrast

Relative luminance0.04044WCAG 2.x, 0 is black and 1 is white
Perceived brightness58.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.61:1
Contrast with white11.61:1WCAG normal text: AAA
Contrast with black1.81:1WCAG normal text: Fail
Greyscale equivalent#363636
Inverted#DACA92

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#183C6Fno red cones; affects about 1% of men; ΔE 6.7 from the original
Deuteranopia#08366Cno green cones; the most common form, about 1% of men; ΔE 5.3 from the original
Tritanopia#00424Bno 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 text11.61:1WCAG large text: AAA
Contrast with black, large text1.81:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 16.5Midnight blue · ΔE 25.1Steel blue · ΔE 33.5Rebecca purple · ΔE 33.5Slate blue · ΔE 39Dark slate grey · ΔE 40.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 16.47, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6D5D25
Analogous#25596D, #39256D
Triadic#6D2535, #356D25
Split complementary#6D3925, #596D25
Tetradic#6D2559, #6D5D25, #256D39

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8899D6
Lighter +30%#6179CA
Lighter +20%#3F5AB9
Lighter +10%#324893
Darker −10%#182247
Darker −20%#0B1021
Darker −30%#000000
Darker −40%#000000
More saturated +25%#132B7F
Less saturated −25%#373F5B

Channel breakdown

R37
G53
B109
Red37 (14.5%)
Green53 (20.8%)
Blue109 (42.7%)
Hue226.67°
Saturation (HSL)49.32%
Lightness28.63%
Dominant channelBlue
Hex per channelR 25 · G 35 · B 6D

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Every value on this page was computed from “25356d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.