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Colour

#003A90

  • #003A90
  • Blue
  • Dark
  • Nearest: Dark slateblue

#003A90 is a blue with RGB values 0, 58, 144 and HSL 216°, 100%, 28%. It is a dark colour, so white text on it reaches 10.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#003A90#003A90
HEX#003A90
RGBrgb(0, 58, 144)
RGB (0–1)0, 0.2275, 0.5647
RGB percentages0%, 22.7%, 56.5%
HSLhsl(215.8, 100%, 28.2%)
HSV / HSBhsv(215.8, 100%, 56.5%)
CMYK100%, 59.7%, 0%, 43.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,992
CSS custom property--colour: #003A90;

Brightness & contrast

Relative luminance0.0504WCAG 2.x, 0 is black and 1 is white
Perceived brightness65.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.46:1
Contrast with white10.46:1WCAG normal text: AAA
Contrast with black2.01:1WCAG normal text: Fail
Greyscale equivalent#343434
Inverted#FFC56F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004693no red cones; affects about 1% of men; ΔE 9.1 from the original
Deuteranopia#003A8Eno green cones; the most common form, about 1% of men; ΔE 1.3 from the original
Tritanopia#00505Fno blue cones; rare, and affects men and women equally; ΔE 51.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.46:1WCAG large text: AAA
Contrast with black, large text2.01:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12Midnight blue · ΔE 16Rebecca purple · ΔE 23.9Slate blue · ΔE 25Royal blue · ΔE 25.6Indigo · ΔE 32.1
Nearest named CSS colourDark slateblue (#483D8B)ΔE 11.98, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#905600
Analogous#008290, #0E0090
Triadic#90003A, #3A9000
Split complementary#900E00, #829000
Tetradic#900082, #905600, #00900E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5D9EFF
Lighter +30%#2A80FF
Lighter +20%#0063F6
Lighter +10%#004FC3
Darker −10%#00255D
Darker −20%#00112A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003A90
Less saturated −25%#123D7E

Channel breakdown

R0
G58
B144
Red0 (0%)
Green58 (22.7%)
Blue144 (56.5%)
Hue215.83°
Saturation (HSL)100%
Lightness28.24%
Dominant channelBlue
Hex per channelR 00 · G 3A · B 90

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Every value on this page was computed from “003a90” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.