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Colour

#0400CA

  • #0400CA
  • Blue
  • Dark
  • Nearest: Medium blue

#0400CA is a blue with RGB values 4, 0, 202 and HSL 241°, 100%, 40%. It is a dark colour, so white text on it reaches 11.3:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#0400CA#0400CA
HEX#0400CA
RGBrgb(4, 0, 202)
RGB (0–1)0.0157, 0, 0.7922
RGB percentages1.6%, 0%, 79.2%
HSLhsl(241.2, 100%, 39.6%)
HSV / HSBhsv(241.2, 100%, 79.2%)
CMYK98%, 100%, 0%, 20.8%naive device-independent conversion; real print needs an ICC profile
24-bit integer262,346
CSS custom property--colour: #0400CA;

Brightness & contrast

Relative luminance0.0429WCAG 2.x, 0 is black and 1 is white
Perceived brightness68.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.3:1
Contrast with white11.3:1WCAG normal text: AAA
Contrast with black1.86:1WCAG normal text: Fail
Greyscale equivalent#0F0F0F
Inverted#FBFF35

Colour vision & accessibility

Protanopia#0045CFno red cones; affects about 1% of men; ΔE 34 from the original
Deuteranopia#002FC7no green cones; the most common form, about 1% of men; ΔE 21.3 from the original
Tritanopia#005375no blue cones; rare, and affects men and women equally; ΔE 99.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.3:1WCAG large text: AAA
Contrast with black, large text1.86:1WCAG large text: Fail

Named colours

Nearest named CSS colourMedium blue (#0000CD)ΔE 1.4, below the just-noticeable difference
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#C6CA00
Analogous#0061CA, #6900CA
Triadic#CA0400, #00CA04
Split complementary#CA6900, #61CA00
Tetradic#CA0061, #C6CA00, #00CA69

Tints, shades & saturation

Lighter +40%#9997FF
Lighter +30%#6764FF
Lighter +20%#3531FF
Lighter +10%#0500FD
Darker −10%#030097
Darker −20%#020064
Darker −30%#010031
Darker −40%#000000
More saturated +25%#0400CA
Less saturated −25%#1C19B1

Channel breakdown

R4
G0
B202
Red4 (1.6%)
Green0 (0%)
Blue202 (79.2%)
Hue241.19°
Saturation (HSL)100%
Lightness39.61%
Dominant channelBlue
Hex per channelR 04 · G 00 · B CA

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Every value on this page was computed from “0400ca” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.