#FF5740#FF5740

#FF5740 is a light, highly saturated red. Relative luminance 0.284; OKLCH L 68.2% C 0.208 H 30.8°. Best body text is #000000 at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#FF5740
RGB	rgb(255, 87, 64)
HSL	hsl(7, 100%, 63%)
HSV	hsv(7, 75%, 100%)
CMYK	cmyk(0%, 65.9%, 74.9%, 0%)
CIE-LAB	lab(60.30, 62.50, 47.98)
CIE-LCH	lch(60.30, 78.79, 37.51°)
OKLab	oklab(68.16% 0.1784 0.1064)
OKLCH	oklch(68.16% 0.208 30.8)
XYZ	xyz(45.5787, 28.4533, 7.9415)
Luminance	0.2845 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FF5740 #40E8FF

analogous

#FF4089 #FF5740 #FFB640

triadic

#FF5740 #40FF57 #5740FF

tetradic

#FF5740 #89FF40 #40E8FF #B640FF

square

#FF5740 #89FF40 #40E8FF #B640FF

split-complementary

#FF5740 #40FFB6 #4089FF

monochromatic

#C51800 #FF2103 #FF5740 #FF8D7D #FFC3BA

Accessibility & contrast

On white

3.14

#FF5740 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.69

#FF5740 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #FF5740

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FF5740	#FFFFFF	#000000	##000000
##FF5740	1.00	3.14	6.69	6.69
#FFFFFF	3.14	1.00	21.00	21.00
#000000	6.69	21.00	1.00	1.00
##000000	6.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#877A3C

Deuteranopia (green-blind)

#B19F3A

Tritanopia (blue-blind)

#FF2453

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #ff5740;
/* rgb */ color: rgb(255, 87, 64);
/* oklch */ color: oklch(68.2% 0.208 30.8);

Tailwind

colors: {
  custom: {
    50: '#ff8f76',
    500: '#ff5740',
    950: '#000000',
  },
}

SCSS

$custom: #ff5740;
$custom-light: #ff8f76;
$custom-dark: #000000;

JSON

{
  "hex": "#ff5740",
  "rgb": {
    "r": 255,
    "g": 87,
    "b": 64
  },
  "hsl": {
    "h": 7.225,
    "s": 100,
    "l": 62.549
  },
  "oklch": {
    "l": 0.68161,
    "c": 0.2077,
    "h": 30.8
  },
  "luminance": 0.28447
}

Semantic roles & 50–950 ramp

primary

#FF5740

secondary

#ABE8F0

accent

#CAE600

background

#FFF9F7

surface

#FFF1ED

border

#D7CBC8

text

#1A0D08

muted

#877E7B

Preview Lab

Preview with #FF5740

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

Preview Lab → · Contrast checker → · Palette generator →