Recognised as Colour

#CB021D

#CB021D
Red
Dark
Nearest: Crimson

#CB021D is a red with RGB values 203, 2, 29 and HSL 352°, 98%, 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

#CB021D#CB021D

HEX#CB021D

RGBrgb(203, 2, 29)

RGB (0–1)0.7961, 0.0078, 0.1137

RGB percentages79.6%, 0.8%, 11.4%

HSLhsl(351.9, 98%, 40.2%)

HSV / HSBhsv(351.9, 99%, 79.6%)

CMYK0%, 99%, 85.7%, 20.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,304,349

CSS custom property--colour: #CB021D;

Brightness & contrast

Relative luminance0.12829WCAG 2.x, 0 is black and 1 is white

Perceived brightness111.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.89:1

Contrast with white5.89:1WCAG normal text: AA

Contrast with black3.57:1WCAG normal text: Fail

Greyscale equivalent#2F2F2F

Inverted#34FDE2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#544B1Ano red cones; affects about 1% of men; ΔE 73.1 from the original

Deuteranopia#80720Fno green cones; the most common form, about 1% of men; ΔE 72.9 from the original

Tritanopia#E00014no blue cones; rare, and affects men and women equally; ΔE 11.5 from the original

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

Contrast with white, large text5.89:1WCAG large text: AAA

Contrast with black, large text3.57:1WCAG large text: AA

Named colours

Crimson · ΔE 13 Firebrick · ΔE 14.4 Tomato · ΔE 22 Dark red · ΔE 22.4 Brown · ΔE 23.8 Maroon · ΔE 26.9

Nearest named CSS colourCrimson (#DC143C)ΔE 13.02, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#02CBB0

Analogous#CB0282, #CB4B02

Triadic#1DCB02, #021DCB

Split complementary#02CB4B, #0282CB

Tetradic#82CB02, #02CBB0, #4B02CB

Tints, shades & saturation

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

Lighter +40%#FE9BA8

Lighter +30%#FE687D

Lighter +20%#FD3651

Lighter +10%#FD0325

Darker −10%#980216

Darker −20%#66010F

Darker −30%#330107

Darker −40%#010000

More saturated +25%#CD001C

Less saturated −25%#B11C30

Channel breakdown

R203

B29

Red203 (79.6%)

Green2 (0.8%)

Blue29 (11.4%)

Hue351.94°

Saturation (HSL)98.05%

Lightness40.2%

Dominant channelRed

Hex per channelR CB · G 02 · B 1D

Keep nerding

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

#CB021D

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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