#EC311D#EC311D

#EC311D is a mid, highly saturated red. Relative luminance 0.201; OKLCH L 61.2% C 0.224 H 30.4°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#EC311D
RGB	rgb(236, 49, 29)
HSL	hsl(6, 84%, 52%)
HSV	hsv(6, 88%, 93%)
CMYK	cmyk(0%, 79.2%, 87.7%, 7.5%)
CIE-LAB	lab(51.98, 68.48, 55.77)
CIE-LCH	lch(51.98, 88.32, 39.16°)
OKLab	oklab(61.24% 0.1929 0.1132)
OKLCH	oklch(61.24% 0.224 30.4)
XYZ	xyz(35.9167, 20.1241, 3.1554)
Luminance	0.2012 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#EC311D #1DD8EC

analogous

#EC1D71 #EC311D #EC991D

triadic

#EC311D #1DEC31 #311DEC

tetradic

#EC311D #71EC1D #1DD8EC #991DEC

square

#EC311D #71EC1D #1DD8EC #991DEC

split-complementary

#EC311D #1DEC99 #1D71EC

monochromatic

#84170B #BC2010 #EC311D #F16455 #F5988E

Accessibility & contrast

On white

4.18

#EC311D on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.02

#EC311D on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #EC311D

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##EC311D	#FFFFFF	#000000	##000000
##EC311D	1.00	4.18	5.02	5.02
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.02	21.00	1.00	1.00
##000000	5.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F6216

Deuteranopia (green-blind)

#9C8B0B

Tritanopia (blue-blind)

#FF002F

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #ec311d;
/* rgb */ color: rgb(236, 49, 29);
/* oklch */ color: oklch(61.2% 0.224 30.4);

Tailwind

colors: {
  custom: {
    50: '#fe7a5e',
    500: '#ec311d',
    950: '#000000',
  },
}

SCSS

$custom: #ec311d;
$custom-light: #fe7a5e;
$custom-dark: #000000;

JSON

{
  "hex": "#ec311d",
  "rgb": {
    "r": 236,
    "g": 49,
    "b": 29
  },
  "hsl": {
    "h": 5.797,
    "s": 84.49,
    "l": 51.961
  },
  "oklch": {
    "l": 0.61237,
    "c": 0.2237,
    "h": 30.4
  },
  "luminance": 0.20118
}

Semantic roles & 50–950 ramp

primary

#EC311D

secondary

#85D7E0

accent

#E7FB2D

background

#FFF8F5

surface

#FFEFE9

border

#D7CAC5

text

#1A0A05

muted

#877C79

Preview Lab

Preview with #EC311D

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →