Colour

#DF421F

#DF421F
Red
Dark
Nearest: Tomato

#DF421F is a red with RGB values 223, 66, 31 and HSL 11°, 76%, 50%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Tomato.

Colour values

#DF421F#DF421F

HEX#DF421F

RGBrgb(223, 66, 31)

RGB (0–1)0.8745, 0.2588, 0.1216

RGB percentages87.5%, 25.9%, 12.2%

HSLhsl(10.9, 75.6%, 49.8%)

HSV / HSBhsv(10.9, 86.1%, 87.5%)

CMYK0%, 70.4%, 86.1%, 12.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,631,455

CSS custom property--colour: #DF421F;

Brightness & contrast

Relative luminance0.19683WCAG 2.x, 0 is black and 1 is white

Perceived brightness132.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.94:1

Contrast with white4.25:1WCAG normal text: Fail

Contrast with black4.94:1WCAG normal text: AA

Greyscale equivalent#616161

Inverted#20BDE0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#726418no red cones; affects about 1% of men; ΔE 64.1 from the original

Deuteranopia#988714no green cones; the most common form, about 1% of men; ΔE 64.7 from the original

Tritanopia#F6003Cno blue cones; rare, and affects men and women equally; ΔE 23.7 from the original

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

Contrast with white, large text4.25:1WCAG large text: AA

Contrast with black, large text4.94:1WCAG large text: AAA

Named colours

Tomato · ΔE 12.9 Orange red · ΔE 18.7 Firebrick · ΔE 20.4 Coral · ΔE 21.9 Chocolate · ΔE 22.9 Crimson · ΔE 23.5

Nearest named CSS colourTomato (#FF6347)ΔE 12.93, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1FBCDF

Analogous#DF1F5C, #DFA21F

Triadic#1FDF42, #421FDF

Split complementary#1FDFA2, #1F5CDF

Tetradic#5CDF1F, #1FBCDF, #A21FDF

Tints, shades & saturation

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

Lighter +40%#F9D9D1

Lighter +30%#F2B3A5

Lighter +20%#EC8D78

Lighter +10%#E6674B

Darker −10%#B23519

Darker −20%#852713

Darker −30%#591A0C

Darker −40%#2C0D06

More saturated +25%#FE2E00

Less saturated −25%#BF563F

Channel breakdown

R223

G66

B31

Red223 (87.5%)

Green66 (25.9%)

Blue31 (12.2%)

Hue10.94°

Saturation (HSL)75.59%

Lightness49.8%

Dominant channelRed

Hex per channelR DF · G 42 · B 1F

Keep nerding

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

#DF421F

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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