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Recognised as Colour

#CA0028

  • #CA0028
  • Red
  • Dark
  • Nearest: Crimson

#CA0028 is a red with RGB values 202, 0, 40 and HSL 348°, 100%, 40%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#CA0028#CA0028
HEX#CA0028
RGBrgb(202, 0, 40)
RGB (0–1)0.7922, 0, 0.1569
RGB percentages79.2%, 0%, 15.7%
HSLhsl(348.1, 100%, 39.6%)
HSV / HSBhsv(348.1, 100%, 79.2%)
CMYK0%, 100%, 80.2%, 20.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer13,238,312
CSS custom property--colour: #CA0028;

Brightness & contrast

Relative luminance0.1271WCAG 2.x, 0 is black and 1 is white
Perceived brightness111.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.93:1
Contrast with white5.93:1WCAG normal text: AA
Contrast with black3.54:1WCAG normal text: Fail
Greyscale equivalent#2E2E2E
Inverted#35FFD7

Colour vision & accessibility

Protanopia#534B27no red cones; affects about 1% of men; ΔE 72.8 from the original
Deuteranopia#7F711Fno green cones; the most common form, about 1% of men; ΔE 72.4 from the original
Tritanopia#DF0018no blue cones; rare, and affects men and women equally; ΔE 15.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.93:1WCAG large text: AAA
Contrast with black, large text3.54:1WCAG large text: AA

Named colours

Nearest named CSS colourCrimson (#DC143C)ΔE 7.88, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#00CAA2
Analogous#CA008D, #CA3D00
Triadic#28CA00, #0028CA
Split complementary#00CA3D, #008DCA
Tetradic#8DCA00, #00CAA2, #3D00CA

Tints, shades & saturation

Lighter +40%#FF97AC
Lighter +30%#FF6483
Lighter +20%#FF315A
Lighter +10%#FD0032
Darker −10%#97001E
Darker −20%#640014
Darker −30%#31000A
Darker −40%#000000
More saturated +25%#CA0028
Less saturated −25%#B11937

Channel breakdown

R202
G0
B40
Red202 (79.2%)
Green0 (0%)
Blue40 (15.7%)
Hue348.12°
Saturation (HSL)100%
Lightness39.61%
Dominant channelRed
Hex per channelR CA · G 00 · B 28

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Every value on this page was computed from “ca0028” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.