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Recognised as Colour

#25487F

  • #25487F
  • Blue
  • Dark
  • Nearest: Dark slateblue

#25487F is a blue with RGB values 37, 72, 127 and HSL 217°, 55%, 32%. It is a dark colour, so white text on it reaches 9.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#25487F#25487F
HEX#25487F
RGBrgb(37, 72, 127)
RGB (0–1)0.1451, 0.2824, 0.498
RGB percentages14.5%, 28.2%, 49.8%
HSLhsl(216.7, 54.9%, 32.2%)
HSV / HSBhsv(216.7, 70.9%, 49.8%)
CMYK70.9%, 43.3%, 0%, 50.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,443,391
CSS custom property--colour: #25487F;

Brightness & contrast

Relative luminance0.0656WCAG 2.x, 0 is black and 1 is white
Perceived brightness72.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.08:1
Contrast with white9.08:1WCAG normal text: AAA
Contrast with black2.31:1WCAG normal text: Fail
Greyscale equivalent#454545
Inverted#DAB780

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2E4D81no red cones; affects about 1% of men; ΔE 3.1 from the original
Deuteranopia#20457Eno green cones; the most common form, about 1% of men; ΔE 2 from the original
Tritanopia#00555Dno blue cones; rare, and affects men and women equally; ΔE 35.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.08:1WCAG large text: AAA
Contrast with black, large text2.31:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 20.4Steel blue · ΔE 24.5Midnight blue · ΔE 32.4Slate grey · ΔE 34.1Cornflower blue · ΔE 34.4Light slate grey · ΔE 35.8
Nearest named CSS colourDark slateblue (#483D8B)ΔE 20.35, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7F5C25
Analogous#25757F, #2F257F
Triadic#7F2548, #487F25
Split complementary#7F2F25, #757F25
Tetradic#7F2575, #7F5C25, #257F2F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#91AFDF
Lighter +30%#6A93D3
Lighter +20%#4276C8
Lighter +10%#315EA6
Darker −10%#193258
Darker −20%#0E1B30
Darker −30%#020509
Darker −40%#000000
More saturated +25%#104393
Less saturated −25%#3A4D6A

Channel breakdown

R37
G72
B127
Red37 (14.5%)
Green72 (28.2%)
Blue127 (49.8%)
Hue216.67°
Saturation (HSL)54.88%
Lightness32.16%
Dominant channelBlue
Hex per channelR 25 · G 48 · B 7F

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Every value on this page was computed from “25487f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.