Colour

#ED1531

#ED1531
Red
Dark
Nearest: Crimson

#ED1531 is a red with RGB values 237, 21, 49 and HSL 352°, 86%, 51%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#ED1531#ED1531

HEX#ED1531

RGBrgb(237, 21, 49)

RGB (0–1)0.9294, 0.0824, 0.1922

RGB percentages92.9%, 8.2%, 19.2%

HSLhsl(352.2, 85.7%, 50.6%)

HSV / HSBhsv(352.2, 91.1%, 92.9%)

CMYK0%, 91.1%, 79.3%, 7.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,537,457

CSS custom property--colour: #ED1531;

Brightness & contrast

Relative luminance0.18763WCAG 2.x, 0 is black and 1 is white

Perceived brightness131.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.75:1

Contrast with white4.42:1WCAG normal text: Fail

Contrast with black4.75:1WCAG normal text: AA

Greyscale equivalent#454545

Inverted#12EACE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#655C2Fno red cones; affects about 1% of men; ΔE 80.6 from the original

Deuteranopia#978727no green cones; the most common form, about 1% of men; ΔE 80 from the original

Tritanopia#FF0025no blue cones; rare, and affects men and women equally; ΔE 12.2 from the original

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

Contrast with white, large text4.42:1WCAG large text: AA

Contrast with black, large text4.75:1WCAG large text: AAA

Named colours

Crimson · ΔE 12.1 Tomato · ΔE 20.6 Firebrick · ΔE 23 Red · ΔE 23.4 Orange red · ΔE 26.3 Brown · ΔE 31.4

Nearest named CSS colourCrimson (#DC143C)ΔE 12.12, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#15EDD1

Analogous#ED159D, #ED6515

Triadic#31ED15, #1531ED

Split complementary#15ED65, #159DED

Tetradic#9DED15, #15EDD1, #6515ED

Tints, shades & saturation

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

Lighter +40%#FCD2D8

Lighter +30%#F8A3AE

Lighter +20%#F47484

Lighter +10%#F1445B

Darker −10%#C00F26

Darker −20%#910B1C

Darker −30%#620813

Darker −40%#32040A

More saturated +25%#FF0324

Less saturated −25%#CE3548

Channel breakdown

R237

G21

B49

Red237 (92.9%)

Green21 (8.2%)

Blue49 (19.2%)

Hue352.22°

Saturation (HSL)85.71%

Lightness50.59%

Dominant channelRed

Hex per channelR ED · G 15 · B 31

Keep nerding

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

#ED1531

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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