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Colour

#0A407B

  • #0A407B
  • Blue
  • Dark
  • Nearest: Dark slateblue

#0A407B is a blue with RGB values 10, 64, 123 and HSL 211°, 85%, 26%. It is a dark colour, so white text on it reaches 10.3:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#0A407B#0A407B
HEX#0A407B
RGBrgb(10, 64, 123)
RGB (0–1)0.0392, 0.251, 0.4824
RGB percentages3.9%, 25.1%, 48.2%
HSLhsl(211.3, 85%, 26.1%)
HSV / HSBhsv(211.3, 91.9%, 48.2%)
CMYK91.9%, 48%, 0%, 51.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer671,867
CSS custom property--colour: #0A407B;

Brightness & contrast

Relative luminance0.05161WCAG 2.x, 0 is black and 1 is white
Perceived brightness64.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.33:1
Contrast with white10.33:1WCAG normal text: AAA
Contrast with black2.03:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#F5BF84

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1F457Dno red cones; affects about 1% of men; ΔE 3.4 from the original
Deuteranopia#003C7Ano green cones; the most common form, about 1% of men; ΔE 2.9 from the original
Tritanopia#004E57no blue cones; rare, and affects men and women equally; ΔE 36.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.33:1WCAG large text: AAA
Contrast with black, large text2.03:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 19.2Steel blue · ΔE 28.5Midnight blue · ΔE 29Cornflower blue · ΔE 36.5Rebecca purple · ΔE 36.8Royal blue · ΔE 38.8
Nearest named CSS colourDark slateblue (#483D8B)ΔE 19.19, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7B450A
Analogous#0A787B, #0D0A7B
Triadic#7B0A40, #407B0A
Split complementary#7B0D0A, #787B0A
Tetradic#7B0A78, #7B450A, #0A7B0D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5FA5F2
Lighter +30%#308BEE
Lighter +20%#1271D9
Lighter +10%#0E59AA
Darker −10%#06274C
Darker −20%#020F1D
Darker −30%#000000
Darker −40%#000000
More saturated +25%#004085
Less saturated −25%#1B416A

Channel breakdown

R10
G64
B123
Red10 (3.9%)
Green64 (25.1%)
Blue123 (48.2%)
Hue211.33°
Saturation (HSL)84.96%
Lightness26.08%
Dominant channelBlue
Hex per channelR 0A · G 40 · B 7B

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Every value on this page was computed from “0a407b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.