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Colour

#0A25A3

  • #0A25A3
  • Blue
  • Dark
  • Nearest: Dark blue

#0A25A3 is a blue with RGB values 10, 37, 163 and HSL 229°, 88%, 34%. 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 blue.

Colour values

#0A25A3#0A25A3
HEX#0A25A3
RGBrgb(10, 37, 163)
RGB (0–1)0.0392, 0.1451, 0.6392
RGB percentages3.9%, 14.5%, 63.9%
HSLhsl(229.4, 88.4%, 33.9%)
HSV / HSBhsv(229.4, 93.9%, 63.9%)
CMYK93.9%, 77.3%, 0%, 36.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer664,995
CSS custom property--colour: #0A25A3;

Brightness & contrast

Relative luminance0.04032WCAG 2.x, 0 is black and 1 is white
Perceived brightness62.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.63:1
Contrast with white11.63:1WCAG normal text: AAA
Contrast with black1.81:1WCAG normal text: Fail
Greyscale equivalent#282828
Inverted#F5DA5C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0040A7no red cones; affects about 1% of men; ΔE 19.7 from the original
Deuteranopia#0031A1no green cones; the most common form, about 1% of men; ΔE 10.2 from the original
Tritanopia#004B63no blue cones; rare, and affects men and women equally; ΔE 72 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.63:1WCAG large text: AAA
Contrast with black, large text1.81:1WCAG large text: Fail

Named colours

Dark blue · ΔE 12.3Navy · ΔE 12.7Indigo · ΔE 18.3Midnight blue · ΔE 22.9Rebecca purple · ΔE 23.2Slate blue · ΔE 24.8
Nearest named CSS colourDark blue (#00008B)ΔE 12.33, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A3880A
Analogous#0A72A3, #3B0AA3
Triadic#A30A25, #25A30A
Split complementary#A33B0A, #72A30A
Tetradic#A30A72, #A3880A, #0AA33B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8296F7
Lighter +30%#526EF4
Lighter +20%#2246F1
Lighter +10%#0D30D3
Darker −10%#071A73
Darker −20%#040F43
Darker −30%#010413
Darker −40%#000000
More saturated +25%#001FAD
Less saturated −25%#20338D

Channel breakdown

R10
G37
B163
Red10 (3.9%)
Green37 (14.5%)
Blue163 (63.9%)
Hue229.41°
Saturation (HSL)88.44%
Lightness33.92%
Dominant channelBlue
Hex per channelR 0A · G 25 · B A3

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Every value on this page was computed from “0a25a3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.