#FF6640#FF6640

#FF6640 is a light, vivid red. Relative luminance 0.311; OKLCH L 69.9% C 0.194 H 35.1°. Best body text is #000000 at 7.23:1 contrast (WCAG AA passes).

Color values

HEX	#FF6640
RGB	rgb(255, 102, 64)
HSL	hsl(12, 100%, 63%)
HSV	hsv(12, 75%, 100%)
CMYK	cmyk(0%, 60%, 74.9%, 0%)
CIE-LAB	lab(62.63, 56.27, 50.46)
CIE-LCH	lch(62.63, 75.58, 41.88°)
OKLab	oklab(69.92% 0.159 0.1117)
OKLCH	oklch(69.92% 0.194 35.1)
XYZ	xyz(46.9218, 31.1394, 8.3892)
Luminance	0.3113 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FF6640 #40D9FF

analogous

#FF407A #FF6640 #FFC540

triadic

#FF6640 #40FF66 #6640FF

tetradic

#FF6640 #7AFF40 #40D9FF #C540FF

square

#FF6640 #7AFF40 #40D9FF #C540FF

split-complementary

#FF6640 #40FFC5 #407AFF

monochromatic

#C52700 #FF3503 #FF6640 #FF977D #FFC8BA

Accessibility & contrast

On white

2.91

#FF6640 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.23

#FF6640 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #FF6640

7.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FF6640	#FFFFFF	#000000	##000000
##FF6640	1.00	2.91	7.23	7.23
#FFFFFF	2.91	1.00	21.00	21.00
#000000	7.23	21.00	1.00	1.00
##000000	7.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#91823B

Deuteranopia (green-blind)

#B6A43B

Tritanopia (blue-blind)

#FF415E

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #ff6640;
/* rgb */ color: rgb(255, 102, 64);
/* oklch */ color: oklch(69.9% 0.194 35.1);

Tailwind

colors: {
  custom: {
    50: '#ff9777',
    500: '#ff6640',
    950: '#000000',
  },
}

SCSS

$custom: #ff6640;
$custom-light: #ff9777;
$custom-dark: #000000;

JSON

{
  "hex": "#ff6640",
  "rgb": {
    "r": 255,
    "g": 102,
    "b": 64
  },
  "hsl": {
    "h": 11.937,
    "s": 100,
    "l": 62.549
  },
  "oklch": {
    "l": 0.69915,
    "c": 0.19435,
    "h": 35.1
  },
  "luminance": 0.31133
}

Semantic roles & 50–950 ramp

primary

#FF6640

secondary

#ABE2F0

accent

#B8E600

background

#FFF9F7

surface

#FFF2ED

border

#D7CCC8

text

#1A0E09

muted

#877E7B

Preview Lab

Preview with #FF6640

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

Preview Lab → · Contrast checker → · Palette generator →