Colour

#C90B00

#C90B00
Red
Dark
Nearest: Orange red

#C90B00 is a red with RGB values 201, 11, 0 and HSL 3°, 100%, 39%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#C90B00#C90B00

HEX#C90B00

RGBrgb(201, 11, 0)

RGB (0–1)0.7882, 0.0431, 0

RGB percentages78.8%, 4.3%, 0%

HSLhsl(3.3, 100%, 39.4%)

HSV / HSBhsv(3.3, 100%, 78.8%)

CMYK0%, 94.5%, 100%, 21.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,175,552

CSS custom property--colour: #C90B00;

Brightness & contrast

Relative luminance0.12657WCAG 2.x, 0 is black and 1 is white

Perceived brightness110.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.95:1

Contrast with white5.95:1WCAG normal text: AA

Contrast with black3.53:1WCAG normal text: Fail

Greyscale equivalent#333333

Inverted#36F4FF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#564B00no red cones; affects about 1% of men; ΔE 71.7 from the original

Deuteranopia#807100no green cones; the most common form, about 1% of men; ΔE 70.8 from the original

Tritanopia#DE0010no blue cones; rare, and affects men and women equally; ΔE 7.6 from the original

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

Contrast with white, large text5.95:1WCAG large text: AAA

Contrast with black, large text3.53:1WCAG large text: AA

Named colours

Orange red · ΔE 20 Red · ΔE 21 Firebrick · ΔE 21.4 Tomato · ΔE 23.7 Crimson · ΔE 23.7 Dark red · ΔE 25.4

Nearest named CSS colourOrange red (#FF4500)ΔE 19.97, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00BEC9

Analogous#C9005A, #C96F00

Triadic#00C90B, #0B00C9

Split complementary#00C970, #0059C9

Tetradic#5AC900, #00BEC9, #7000C9

Tints, shades & saturation

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

Lighter +40%#FF9C96

Lighter +30%#FF6C63

Lighter +20%#FF3B30

Lighter +10%#FC0E00

Darker −10%#960800

Darker −20%#630500

Darker −30%#300300

Darker −40%#000000

More saturated +25%#C90B00

Less saturated −25%#B02119

Channel breakdown

R201

G11

Red201 (78.8%)

Green11 (4.3%)

Blue0 (0%)

Hue3.28°

Saturation (HSL)100%

Lightness39.41%

Dominant channelRed

Hex per channelR C9 · G 0B · B 00

Keep nerding

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

#C90B00

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

Nerdulate something else