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Recognised as Colour

#290FB4

  • #290FB4
  • Blue
  • Dark
  • Nearest: Dark blue

#290FB4 is a blue with RGB values 41, 15, 180 and HSL 249°, 85%, 38%. It is a dark colour, so white text on it reaches 11.5:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#290FB4#290FB4
HEX#290FB4
RGBrgb(41, 15, 180)
RGB (0–1)0.1608, 0.0588, 0.7059
RGB percentages16.1%, 5.9%, 70.6%
HSLhsl(249.5, 84.6%, 38.2%)
HSV / HSBhsv(249.5, 91.7%, 70.6%)
CMYK77.2%, 91.7%, 0%, 29.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,690,996
CSS custom property--colour: #290FB4;

Brightness & contrast

Relative luminance0.04108WCAG 2.x, 0 is black and 1 is white
Perceived brightness65.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.53:1
Contrast with white11.53:1WCAG normal text: AAA
Contrast with black1.82:1WCAG normal text: Fail
Greyscale equivalent#202020
Inverted#D6F04B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0040B8no red cones; affects about 1% of men; ΔE 29 from the original
Deuteranopia#0031B1no green cones; the most common form, about 1% of men; ΔE 20.5 from the original
Tritanopia#004B69no blue cones; rare, and affects men and women equally; ΔE 86.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.53:1WCAG large text: AAA
Contrast with black, large text1.82:1WCAG large text: Fail

Named colours

Dark blue · ΔE 15.4Medium blue · ΔE 16.1Navy · ΔE 20.4Blue violet · ΔE 21.9Dark violet · ΔE 25.3Indigo · ΔE 26
Nearest named CSS colourDark blue (#00008B)ΔE 15.36, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9AB40F
Analogous#0F47B4, #7C0FB4
Triadic#B4290F, #0FB429
Split complementary#B47C0F, #48B40F
Tetradic#B40F47, #9AB40F, #0FB47C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A799F6
Lighter +30%#7F69F3
Lighter +20%#573AEF
Lighter +10%#3413E3
Darker −10%#1E0B85
Darker −20%#140756
Darker −30%#090327
Darker −40%#000000
More saturated +25%#1F00C3
Less saturated −25%#3A279C

Channel breakdown

R41
G15
B180
Red41 (16.1%)
Green15 (5.9%)
Blue180 (70.6%)
Hue249.45°
Saturation (HSL)84.62%
Lightness38.24%
Dominant channelBlue
Hex per channelR 29 · G 0F · B B4

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Every value on this page was computed from “290fb4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.