Recognised as Colour

#DD101E

#DD101E
Red
Dark
Nearest: Crimson

#DD101E is a red with RGB values 221, 16, 30 and HSL 356°, 86%, 46%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#DD101E#DD101E

HEX#DD101E

RGBrgb(221, 16, 30)

RGB (0–1)0.8667, 0.0627, 0.1176

RGB percentages86.7%, 6.3%, 11.8%

HSLhsl(355.9, 86.5%, 46.5%)

HSV / HSBhsv(355.9, 92.8%, 86.7%)

CMYK0%, 92.8%, 86.4%, 13.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,487,582

CSS custom property--colour: #DD101E;

Brightness & contrast

Relative luminance0.15836WCAG 2.x, 0 is black and 1 is white

Perceived brightness121.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.04:1

Contrast with white5.04:1WCAG normal text: AA

Contrast with black4.17:1WCAG normal text: Fail

Greyscale equivalent#3D3D3D

Inverted#22EFE1

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5E541Ano red cones; affects about 1% of men; ΔE 76.8 from the original

Deuteranopia#8D7D0Eno green cones; the most common form, about 1% of men; ΔE 76.1 from the original

Tritanopia#F4001Bno blue cones; rare, and affects men and women equally; ΔE 10.5 from the original

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

Contrast with white, large text5.04:1WCAG large text: AAA

Contrast with black, large text4.17:1WCAG large text: AA

Named colours

Crimson · ΔE 16.3 Tomato · ΔE 20.5 Red · ΔE 20.6 Firebrick · ΔE 20.8 Orange red · ΔE 22.1 Dark red · ΔE 28.6

Nearest named CSS colourCrimson (#DC143C)ΔE 16.35, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#10DDCF

Analogous#DD1084, #DD6810

Triadic#1EDD10, #101EDD

Split complementary#10DD68, #1085DD

Tetradic#85DD10, #10DDCF, #6810DD

Tints, shades & saturation

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

Lighter +40%#FABFC3

Lighter +30%#F78F96

Lighter +20%#F3606A

Lighter +10%#F0303D

Darker −10%#AD0D18

Darker −20%#7E0911

Darker −30%#4E060B

Darker −40%#1F0204

More saturated +25%#ED0010

Less saturated −25%#BF2E38

Channel breakdown

R221

G16

B30

Red221 (86.7%)

Green16 (6.3%)

Blue30 (11.8%)

Hue355.9°

Saturation (HSL)86.5%

Lightness46.47%

Dominant channelRed

Hex per channelR DD · G 10 · B 1E

Keep nerding

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

#DD101E

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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