Colour

#CC001B

#CC001B
Red
Dark
Nearest: Crimson

#CC001B is a red with RGB values 204, 0, 27 and HSL 352°, 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

#CC001B#CC001B

HEX#CC001B

RGBrgb(204, 0, 27)

RGB (0–1)0.8, 0, 0.1059

RGB percentages80%, 0%, 10.6%

HSLhsl(352.1, 100%, 40%)

HSV / HSBhsv(352.1, 100%, 80%)

CMYK0%, 100%, 86.8%, 20%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,369,371

CSS custom property--colour: #CC001B;

Brightness & contrast

Relative luminance0.12917WCAG 2.x, 0 is black and 1 is white

Perceived brightness111.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.86:1

Contrast with white5.86:1WCAG normal text: AA

Contrast with black3.58:1WCAG normal text: Fail

Greyscale equivalent#2D2D2D

Inverted#33FFE4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#544B18no red cones; affects about 1% of men; ΔE 73.7 from the original

Deuteranopia#81720Bno green cones; the most common form, about 1% of men; ΔE 72.9 from the original

Tritanopia#E10012no blue cones; rare, and affects men and women equally; ΔE 11.3 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text5.86:1WCAG large text: AAA

Contrast with black, large text3.58:1WCAG large text: AA

Named colours

Crimson · ΔE 14 Firebrick · ΔE 15.4 Tomato · ΔE 22.1 Dark red · ΔE 23 Brown · ΔE 24.9 Red · ΔE 26.2

Nearest named CSS colourCrimson (#DC143C)ΔE 13.99, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#00CCB1

Analogous#CC0081, #CC4B00

Triadic#1BCC00, #001BCC

Split complementary#00CC4B, #0081CC

Tetradic#81CC00, #00CCB1, #4B00CC

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#FF99A7

Lighter +30%#FF667A

Lighter +20%#FF334E

Lighter +10%#FF0022

Darker −10%#990014

Darker −20%#66000E

Darker −30%#330007

Darker −40%#000000

More saturated +25%#CC001B

Less saturated −25%#B3192E

Channel breakdown

R204

B27

Red204 (80%)

Green0 (0%)

Blue27 (10.6%)

Hue352.06°

Saturation (HSL)100%

Lightness40%

Dominant channelRed

Hex per channelR CC · G 00 · B 1B

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#CC001B

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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