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Recognised as Colour

#252B68

  • #252B68
  • Blue
  • Dark
  • Nearest: Dark slateblue

#252B68 is a blue with RGB values 37, 43, 104 and HSL 235°, 48%, 28%. It is a dark colour, so white text on it reaches 12.9:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#252B68#252B68
HEX#252B68
RGBrgb(37, 43, 104)
RGB (0–1)0.1451, 0.1686, 0.4078
RGB percentages14.5%, 16.9%, 40.8%
HSLhsl(234.6, 47.5%, 27.6%)
HSV / HSBhsv(234.6, 64.4%, 40.8%)
CMYK64.4%, 58.7%, 0%, 59.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,435,944
CSS custom property--colour: #252B68;

Brightness & contrast

Relative luminance0.03121WCAG 2.x, 0 is black and 1 is white
Perceived brightness52.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.93:1
Contrast with white12.93:1WCAG normal text: AAA
Contrast with black1.62:1WCAG normal text: Fail
Greyscale equivalent#2E2E2E
Inverted#DAD497

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00346Ano red cones; affects about 1% of men; ΔE 10.5 from the original
Deuteranopia#002F67no green cones; the most common form, about 1% of men; ΔE 8.1 from the original
Tritanopia#003945no blue cones; rare, and affects men and women equally; ΔE 38.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.93:1WCAG large text: AAA
Contrast with black, large text1.62:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 14Midnight blue · ΔE 19.2Rebecca purple · ΔE 29.4Slate blue · ΔE 37.1Indigo · ΔE 37.3Steel blue · ΔE 39.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 13.97, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#686225
Analogous#254D68, #412568
Triadic#68252B, #2B6825
Split complementary#684125, #4D6825
Tetradic#68254C, #686225, #256840

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#858CD4
Lighter +30%#6069C6
Lighter +20%#404AB3
Lighter +10%#323B8E
Darker −10%#181B42
Darker −20%#0A0C1D
Darker −30%#000000
Darker −40%#000000
More saturated +25%#131D7A
Less saturated −25%#373956

Channel breakdown

R37
G43
B104
Red37 (14.5%)
Green43 (16.9%)
Blue104 (40.8%)
Hue234.63°
Saturation (HSL)47.52%
Lightness27.65%
Dominant channelBlue
Hex per channelR 25 · G 2B · B 68

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Every value on this page was computed from “252b68” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.