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Colour

#0A4297

  • #0A4297
  • Blue
  • Dark
  • Nearest: Dark slateblue

#0A4297 is a blue with RGB values 10, 66, 151 and HSL 216°, 88%, 32%. It is a dark colour, so white text on it reaches 9.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#0A4297#0A4297
HEX#0A4297
RGBrgb(10, 66, 151)
RGB (0–1)0.0392, 0.2588, 0.5922
RGB percentages3.9%, 25.9%, 59.2%
HSLhsl(216.2, 87.6%, 31.6%)
HSV / HSBhsv(216.2, 93.4%, 59.2%)
CMYK93.4%, 56.3%, 0%, 40.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer672,407
CSS custom property--colour: #0A4297;

Brightness & contrast

Relative luminance0.06195WCAG 2.x, 0 is black and 1 is white
Perceived brightness72 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.38:1
Contrast with white9.38:1WCAG normal text: AAA
Contrast with black2.24:1WCAG normal text: Fail
Greyscale equivalent#3C3C3C
Inverted#F5BD68

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004D9Ano red cones; affects about 1% of men; ΔE 8.4 from the original
Deuteranopia#004195no green cones; the most common form, about 1% of men; ΔE 0.9 from the original
Tritanopia#005766no blue cones; rare, and affects men and women equally; ΔE 50.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.38:1WCAG large text: AAA
Contrast with black, large text2.24:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12.1Midnight blue · ΔE 19.6Royal blue · ΔE 24.3Slate blue · ΔE 24.6Rebecca purple · ΔE 25.3Medium purple · ΔE 31.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 12.05, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#975F0A
Analogous#0A8997, #190A97
Triadic#970A42, #42970A
Split complementary#97180A, #89970A
Tetradic#970A88, #975F0A, #0A9718

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#77A9F6
Lighter +30%#478BF3
Lighter +20%#176DF0
Lighter +10%#0D57C7
Darker −10%#072D67
Darker −20%#041837
Darker −30%#000308
Darker −40%#000000
More saturated +25%#0040A1
Less saturated −25%#1E4683

Channel breakdown

R10
G66
B151
Red10 (3.9%)
Green66 (25.9%)
Blue151 (59.2%)
Hue216.17°
Saturation (HSL)87.58%
Lightness31.57%
Dominant channelBlue
Hex per channelR 0A · G 42 · B 97

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Every value on this page was computed from “0a4297” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.