#FF512B#FF512B

#FF512B is a light, highly saturated red. Relative luminance 0.273; OKLCH L 67.3% C 0.216 H 33.7°. Best body text is #000000 at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#FF512B
RGB	rgb(255, 81, 43)
HSL	hsl(11, 100%, 58%)
HSV	hsv(11, 83%, 100%)
CMYK	cmyk(0%, 68.2%, 83.1%, 0%)
CIE-LAB	lab(59.27, 64.15, 57.18)
CIE-LCH	lch(59.27, 85.93, 41.71°)
OKLab	oklab(67.34% 0.1799 0.12)
OKLCH	oklch(67.34% 0.216 33.7)
XYZ	xyz(44.6238, 27.3261, 5.2098)
Luminance	0.2732 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FF512B #2BD9FF

analogous

#FF2B6F #FF512B #FFBB2B

triadic

#FF512B #2BFF51 #512BFF

tetradic

#FF512B #6FFF2B #2BD9FF #BB2BFF

square

#FF512B #6FFF2B #2BD9FF #BB2BFF

split-complementary

#FF512B #2BFFBB #2B6FFF

monochromatic

#B01F00 #ED2A00 #FF512B #FF8368 #FFB5A5

Accessibility & contrast

On white

3.25

#FF512B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.46

#FF512B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #FF512B

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FF512B	#FFFFFF	#000000	##000000
##FF512B	1.00	3.25	6.46	6.46
#FFFFFF	3.25	1.00	21.00	21.00
#000000	6.46	21.00	1.00	1.00
##000000	6.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#857624

Deuteranopia (green-blind)

#B09D21

Tritanopia (blue-blind)

#FF064A

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #ff512b;
/* rgb */ color: rgb(255, 81, 43);
/* oklch */ color: oklch(67.3% 0.216 33.7);

Tailwind

colors: {
  custom: {
    50: '#ff8b69',
    500: '#ff512b',
    950: '#000000',
  },
}

SCSS

$custom: #ff512b;
$custom-light: #ff8b69;
$custom-dark: #000000;

JSON

{
  "hex": "#ff512b",
  "rgb": {
    "r": 255,
    "g": 81,
    "b": 43
  },
  "hsl": {
    "h": 10.755,
    "s": 100,
    "l": 58.431
  },
  "oklch": {
    "l": 0.67339,
    "c": 0.21627,
    "h": 33.7
  },
  "luminance": 0.27319
}

Semantic roles & 50–950 ramp

primary

#FF512B

secondary

#99DEED

accent

#D9FF29

background

#FFF9F6

surface

#FFF1EB

border

#D7CBC6

text

#1B0D06

muted

#887E7A

Preview Lab

Preview with #FF512B

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

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