Colour

#D9001C

#D9001C
Red
Dark
Nearest: Crimson

#D9001C is a red with RGB values 217, 0, 28 and HSL 352°, 100%, 43%. It is a dark colour, so white text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#D9001C#D9001C

HEX#D9001C

RGBrgb(217, 0, 28)

RGB (0–1)0.851, 0, 0.1098

RGB percentages85.1%, 0%, 11%

HSLhsl(352.3, 100%, 42.5%)

HSV / HSBhsv(352.3, 100%, 85.1%)

CMYK0%, 100%, 87.1%, 14.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,221,340

CSS custom property--colour: #D9001C;

Brightness & contrast

Relative luminance0.14836WCAG 2.x, 0 is black and 1 is white

Perceived brightness119 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.29:1

Contrast with white5.29:1WCAG normal text: AA

Contrast with black3.97:1WCAG normal text: Fail

Greyscale equivalent#303030

Inverted#26FFE3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5A5019no red cones; affects about 1% of men; ΔE 77.1 from the original

Deuteranopia#8A7A0Ano green cones; the most common form, about 1% of men; ΔE 76.4 from the original

Tritanopia#F00014no blue cones; rare, and affects men and women equally; ΔE 11.5 from the original

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

Contrast with white, large text5.29:1WCAG large text: AAA

Contrast with black, large text3.97:1WCAG large text: AA

Named colours

Crimson · ΔE 15.9 Firebrick · ΔE 20.3 Red · ΔE 21.3 Tomato · ΔE 21.7 Orange red · ΔE 23.2 Dark red · ΔE 27.9

Nearest named CSS colourCrimson (#DC143C)ΔE 15.95, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00D9BD

Analogous#D90088, #D95000

Triadic#1CD900, #001CD9

Split complementary#00D950, #0089D9

Tetradic#89D900, #00D9BD, #5100D9

Tints, shades & saturation

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

Lighter +40%#FFA6B1

Lighter +30%#FF7385

Lighter +20%#FF4059

Lighter +10%#FF0D2C

Darker −10%#A60015

Darker −20%#73000F

Darker −30%#400008

Darker −40%#0D0002

More saturated +25%#D9001C

Less saturated −25%#BE1B30

Channel breakdown

R217

B28

Red217 (85.1%)

Green0 (0%)

Blue28 (11%)

Hue352.26°

Saturation (HSL)100%

Lightness42.55%

Dominant channelRed

Hex per channelR D9 · G 00 · B 1C

Keep nerding

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

#D9001C

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