Colour

#DA2500

#DA2500
Red
Dark
Nearest: Orange red

#DA2500 is a red with RGB values 218, 37, 0 and HSL 10°, 100%, 43%. It is a dark colour, so white text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#DA2500#DA2500

HEX#DA2500

RGBrgb(218, 37, 0)

RGB (0–1)0.8549, 0.1451, 0

RGB percentages85.5%, 14.5%, 0%

HSLhsl(10.2, 100%, 42.7%)

HSV / HSBhsv(10.2, 100%, 85.5%)

CMYK0%, 83%, 100%, 14.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,296,320

CSS custom property--colour: #DA2500;

Brightness & contrast

Relative luminance0.16229WCAG 2.x, 0 is black and 1 is white

Perceived brightness122.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.95:1

Contrast with white4.95:1WCAG normal text: AA

Contrast with black4.25:1WCAG normal text: Fail

Greyscale equivalent#494949

Inverted#25DAFF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#645700no red cones; affects about 1% of men; ΔE 71.9 from the original

Deuteranopia#8F7E00no green cones; the most common form, about 1% of men; ΔE 71.1 from the original

Tritanopia#F10022no blue cones; rare, and affects men and women equally; ΔE 13.8 from the original

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

Contrast with white, large text4.95:1WCAG large text: AAA

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

Named colours

Orange red · ΔE 13.5 Red · ΔE 16.7 Tomato · ΔE 22 Firebrick · ΔE 26.2 Crimson · ΔE 27.2 Chocolate · ΔE 30.5

Nearest named CSS colourOrange red (#FF4500)ΔE 13.53, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00B5DA

Analogous#DA0048, #DA9200

Triadic#00DA25, #2500DA

Split complementary#00DA92, #0048DA

Tetradic#48DA00, #00B5DA, #9200DA

Tints, shades & saturation

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

Lighter +40%#FFB6A7

Lighter +30%#FF8C74

Lighter +20%#FF6141

Lighter +10%#FF370E

Darker −10%#A71C00

Darker −20%#741400

Darker −30%#410B00

Darker −40%#0E0200

More saturated +25%#DA2500

Less saturated −25%#BF371B

Channel breakdown

R218

G37

Red218 (85.5%)

Green37 (14.5%)

Blue0 (0%)

Hue10.18°

Saturation (HSL)100%

Lightness42.75%

Dominant channelRed

Hex per channelR DA · G 25 · B 00

Keep nerding

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#DA2500

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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