Recognised as Colour

#CD1D1F

#CD1D1F
Red
Dark
Nearest: Firebrick

#CD1D1F is a red with RGB values 205, 29, 31 and HSL 359°, 75%, 46%. It is a dark colour, so white text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#CD1D1F#CD1D1F

HEX#CD1D1F

RGBrgb(205, 29, 31)

RGB (0–1)0.8039, 0.1137, 0.1216

RGB percentages80.4%, 11.4%, 12.2%

HSLhsl(359.3, 75.2%, 45.9%)

HSV / HSBhsv(359.3, 85.9%, 80.4%)

CMYK0%, 85.9%, 84.9%, 19.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,442,335

CSS custom property--colour: #CD1D1F;

Brightness & contrast

Relative luminance0.13957WCAG 2.x, 0 is black and 1 is white

Perceived brightness114.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.54:1

Contrast with white5.54:1WCAG normal text: AA

Contrast with black3.79:1WCAG normal text: Fail

Greyscale equivalent#434343

Inverted#32E2E0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5A501Cno red cones; affects about 1% of men; ΔE 69.9 from the original

Deuteranopia#847613no green cones; the most common form, about 1% of men; ΔE 70.1 from the original

Tritanopia#E20021no blue cones; rare, and affects men and women equally; ΔE 10 from the original

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

Contrast with white, large text5.54:1WCAG large text: AAA

Contrast with black, large text3.79:1WCAG large text: AA

Named colours

Firebrick · ΔE 13.1 Crimson · ΔE 14.1 Tomato · ΔE 19.3 Dark red · ΔE 21.6 Brown · ΔE 22.5 Maroon · ΔE 26.2

Nearest named CSS colourFirebrick (#B22222)ΔE 13.06, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1DCDCB

Analogous#CD1D77, #CD731D

Triadic#1FCD1D, #1D1FCD

Split complementary#1DCD73, #1D77CD

Tetradic#77CD1D, #1DCDCB, #731DCD

Tints, shades & saturation

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

Lighter +40%#F6C0C1

Lighter +30%#F09394

Lighter +20%#E96768

Lighter +10%#E33A3C

Darker −10%#A01718

Darker −20%#741011

Darker −30%#470A0B

Darker −40%#1A0404

More saturated +25%#EA0003

Less saturated −25%#B03A3C

Channel breakdown

R205

G29

B31

Red205 (80.4%)

Green29 (11.4%)

Blue31 (12.2%)

Hue359.32°

Saturation (HSL)75.21%

Lightness45.88%

Dominant channelRed

Hex per channelR CD · G 1D · B 1F

Keep nerding

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

#CD1D1F

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