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Colour

#253B64

  • #253B64
  • Blue
  • Dark
  • Nearest: Dark slateblue

#253B64 is a blue with RGB values 37, 59, 100 and HSL 219°, 46%, 27%. It is a dark colour, so white text on it reaches 11.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#253B64#253B64
HEX#253B64
RGBrgb(37, 59, 100)
RGB (0–1)0.1451, 0.2314, 0.3922
RGB percentages14.5%, 23.1%, 39.2%
HSLhsl(219, 46%, 26.9%)
HSV / HSBhsv(219, 63%, 39.2%)
CMYK63%, 41%, 0%, 60.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,440,036
CSS custom property--colour: #253B64;

Brightness & contrast

Relative luminance0.04441WCAG 2.x, 0 is black and 1 is white
Perceived brightness59.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.12:1
Contrast with white11.12:1WCAG normal text: AAA
Contrast with black1.89:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#DAC49B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2A3F66no red cones; affects about 1% of men; ΔE 2.3 from the original
Deuteranopia#213963no green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#00444Ano blue cones; rare, and affects men and women equally; ΔE 28.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.12:1WCAG large text: AAA
Contrast with black, large text1.89:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 26.2Dark slate grey · ΔE 29.5Steel blue · ΔE 29.5Slate grey · ΔE 33.1Dim grey · ΔE 33.5Light slate grey · ΔE 35.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 26.25, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#644E25
Analogous#255B64, #2E2564
Triadic#64253B, #3B6425
Split complementary#642E25, #5B6425
Tetradic#64255B, #644E25, #25642E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#849FD1
Lighter +30%#5E82C4
Lighter +20%#4167AE
Lighter +10%#335189
Darker −10%#17253F
Darker −20%#090F1A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#143675
Less saturated −25%#364053

Channel breakdown

R37
G59
B100
Red37 (14.5%)
Green59 (23.1%)
Blue100 (39.2%)
Hue219.05°
Saturation (HSL)45.99%
Lightness26.86%
Dominant channelBlue
Hex per channelR 25 · G 3B · B 64

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Every value on this page was computed from “253b64” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.