Recognised as Colour

#D90A37

#D90A37
Red
Dark
Nearest: Crimson

#D90A37 is a red with RGB values 217, 10, 55 and HSL 347°, 91%, 45%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#D90A37#D90A37

HEX#D90A37

RGBrgb(217, 10, 55)

RGB (0–1)0.851, 0.0392, 0.2157

RGB percentages85.1%, 3.9%, 21.6%

HSLhsl(347, 91.2%, 44.5%)

HSV / HSBhsv(347, 95.4%, 85.1%)

CMYK0%, 95.4%, 74.7%, 14.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,223,927

CSS custom property--colour: #D90A37;

Brightness & contrast

Relative luminance0.15245WCAG 2.x, 0 is black and 1 is white

Perceived brightness120.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.19:1

Contrast with white5.19:1WCAG normal text: AA

Contrast with black4.05:1WCAG normal text: Fail

Greyscale equivalent#393939

Inverted#26F5C8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#595336no red cones; affects about 1% of men; ΔE 76.3 from the original

Deuteranopia#897B2Fno green cones; the most common form, about 1% of men; ΔE 75.8 from the original

Tritanopia#EF0023no blue cones; rare, and affects men and women equally; ΔE 18 from the original

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

Contrast with white, large text5.19:1WCAG large text: AAA

Contrast with black, large text4.05:1WCAG large text: AA

Named colours

Crimson · ΔE 1.9 Firebrick · ΔE 16.8 Brown · ΔE 23.5 Tomato · ΔE 23.8 Dark red · ΔE 27.6 Indian red · ΔE 30.3

Nearest named CSS colourCrimson (#DC143C)ΔE 1.92, below the just-noticeable difference

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0AD9AC

Analogous#D90A9E, #D9450A

Triadic#37D90A, #0A37D9

Split complementary#0AD944, #0A9ED9

Tetradic#9ED90A, #0AD9AC, #450AD9

Tints, shades & saturation

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

Lighter +40%#FCB3C3

Lighter +30%#F9839C

Lighter +20%#F75276

Lighter +10%#F5214F

Darker −10%#A8082B

Darker −20%#77061E

Darker −30%#470312

Darker −40%#160106

More saturated +25%#E30031

Less saturated −25%#BD2647

Channel breakdown

R217

G10

B55

Red217 (85.1%)

Green10 (3.9%)

Blue55 (21.6%)

Hue346.96°

Saturation (HSL)91.19%

Lightness44.51%

Dominant channelRed

Hex per channelR D9 · G 0A · B 37

Keep nerding

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

#D90A37

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