Colour

#C90001

#C90001
Red
Dark
Nearest: Orange red

#C90001 is a red with RGB values 201, 0, 1 and HSL 360°, 100%, 39%. It is a dark colour, so white text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#C90001#C90001

HEX#C90001

RGBrgb(201, 0, 1)

RGB (0–1)0.7882, 0, 0.0039

RGB percentages78.8%, 0%, 0.4%

HSLhsl(359.7, 100%, 39.4%)

HSV / HSBhsv(359.7, 100%, 78.8%)

CMYK0%, 100%, 99.5%, 21.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,172,737

CSS custom property--colour: #C90001;

Brightness & contrast

Relative luminance0.1242WCAG 2.x, 0 is black and 1 is white

Perceived brightness109.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.03:1

Contrast with white6.03:1WCAG normal text: AA

Contrast with black3.48:1WCAG normal text: Fail

Greyscale equivalent#2B2B2B

Inverted#36FFFE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#544900no red cones; affects about 1% of men; ΔE 72.7 from the original

Deuteranopia#807100no green cones; the most common form, about 1% of men; ΔE 71.9 from the original

Tritanopia#DE0009no blue cones; rare, and affects men and women equally; ΔE 7.2 from the original

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

Contrast with white, large text6.03:1WCAG large text: AAA

Contrast with black, large text3.48:1WCAG large text: AA

Named colours

Orange red · ΔE 20.5 Red · ΔE 20.8 Firebrick · ΔE 21.4 Crimson · ΔE 23.1 Tomato · ΔE 24.2 Dark red · ΔE 25.6

Nearest named CSS colourOrange red (#FF4500)ΔE 20.49, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00C9C8

Analogous#C90065, #C96300

Triadic#01C900, #0001C9

Split complementary#00C963, #0065C9

Tetradic#66C900, #00C9C8, #6400C9

Tints, shades & saturation

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

Lighter +40%#FF9697

Lighter +30%#FF6364

Lighter +20%#FF3031

Lighter +10%#FC0001

Darker −10%#960001

Darker −20%#630000

Darker −30%#300000

Darker −40%#000000

More saturated +25%#C90001

Less saturated −25%#B0191A

Channel breakdown

R201

Red201 (78.8%)

Green0 (0%)

Blue1 (0.4%)

Hue359.7°

Saturation (HSL)100%

Lightness39.41%

Dominant channelRed

Hex per channelR C9 · G 00 · B 01

Keep nerding

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

#C90001

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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