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Recognised as Colour

#EC304B

  • #EC304B
  • Red
  • Dark
  • Nearest: Crimson

#EC304B is a red with RGB values 236, 48, 75 and HSL 351°, 83%, 56%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#EC304B#EC304B
HEX#EC304B
RGBrgb(236, 48, 75)
RGB (0–1)0.9255, 0.1882, 0.2941
RGB percentages92.5%, 18.8%, 29.4%
HSLhsl(351.4, 83.2%, 55.7%)
HSV / HSBhsv(351.4, 79.7%, 92.5%)
CMYK0%, 79.7%, 68.2%, 7.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,478,859
CSS custom property--colour: #EC304B;

Brightness & contrast

Relative luminance0.20455WCAG 2.x, 0 is black and 1 is white
Perceived brightness136.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.09:1
Contrast with white4.12:1WCAG normal text: Fail
Contrast with black5.09:1WCAG normal text: AA
Greyscale equivalent#5A5A5A
Inverted#13CFB4

Colour vision & accessibility

Protanopia#6A644Ano red cones; affects about 1% of men; ΔE 74.8 from the original
Deuteranopia#998B45no green cones; the most common form, about 1% of men; ΔE 74.9 from the original
Tritanopia#FF003Cno blue cones; rare, and affects men and women equally; ΔE 15.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.12:1WCAG large text: AA
Contrast with black, large text5.09:1WCAG large text: AAA

Named colours

Nearest named CSS colourCrimson (#DC143C)ΔE 5.65, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#30ECD1
Analogous#EC30A9, #EC7330
Triadic#4BEC30, #304BEC
Split complementary#30EC73, #30A9EC
Tetradic#A9EC30, #30ECD1, #7330EC

Tints, shades & saturation

Lighter +40%#FDEBED
Lighter +30%#F9BCC5
Lighter +20%#F58D9C
Lighter +10%#F05F74
Darker −10%#D5142F
Darker −20%#A70F25
Darker −30%#780B1B
Darker −40%#490710
More saturated +25%#FF1D3D
Less saturated −25%#D04C5F

Channel breakdown

R236
G48
B75
Red236 (92.5%)
Green48 (18.8%)
Blue75 (29.4%)
Hue351.38°
Saturation (HSL)83.19%
Lightness55.69%
Dominant channelRed
Hex per channelR EC · G 30 · B 4B

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Every value on this page was computed from “ec304b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.