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Recognised as Colour

#25599E

  • #25599E
  • Blue
  • Dark
  • Nearest: Dark slateblue

#25599E is a blue with RGB values 37, 89, 158 and HSL 214°, 62%, 38%. It is a dark colour, so white text on it reaches 7:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#25599E#25599E
HEX#25599E
RGBrgb(37, 89, 158)
RGB (0–1)0.1451, 0.349, 0.6196
RGB percentages14.5%, 34.9%, 62%
HSLhsl(214.2, 62.1%, 38.2%)
HSV / HSBhsv(214.2, 76.6%, 62%)
CMYK76.6%, 43.7%, 0%, 38%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,447,774
CSS custom property--colour: #25599E;

Brightness & contrast

Relative luminance0.10007WCAG 2.x, 0 is black and 1 is white
Perceived brightness88.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7:1
Contrast with white7:1WCAG normal text: AA
Contrast with black3:1WCAG normal text: Fail
Greyscale equivalent#535353
Inverted#DAA661

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#375FA1no red cones; affects about 1% of men; ΔE 3.7 from the original
Deuteranopia#21549Dno green cones; the most common form, about 1% of men; ΔE 3.6 from the original
Tritanopia#006974no blue cones; rare, and affects men and women equally; ΔE 41.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7:1WCAG large text: AAA
Contrast with black, large text3:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 19.5Steel blue · ΔE 21.5Cornflower blue · ΔE 25.1Dodgerblue · ΔE 30.1Royal blue · ΔE 31Slate blue · ΔE 33
Nearest named CSS colourDark slateblue (#483D8B)ΔE 19.54, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9E6A25
Analogous#25969E, #2E259E
Triadic#9E2559, #599E25
Split complementary#9E2E25, #969E25
Tetradic#9E2595, #9E6A25, #259E2E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A5C3EA
Lighter +30%#7CA7E0
Lighter +20%#528BD7
Lighter +10%#2F70C7
Darker −10%#1B4275
Darker −20%#122A4B
Darker −30%#081322
Darker −40%#000000
More saturated +25%#0D56B6
Less saturated −25%#3D5C86

Channel breakdown

R37
G89
B158
Red37 (14.5%)
Green89 (34.9%)
Blue158 (62%)
Hue214.21°
Saturation (HSL)62.05%
Lightness38.24%
Dominant channelBlue
Hex per channelR 25 · G 59 · B 9E

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Every value on this page was computed from “25599e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.