#FF3F28#FF3F28

#FF3F28 is a light, highly saturated red. Relative luminance 0.250; OKLCH L 65.7% C 0.230 H 30.7°. Best body text is #000000 at 5.99:1 contrast (WCAG AA passes).

Color values

HEX	#FF3F28
RGB	rgb(255, 63, 40)
HSL	hsl(6, 100%, 58%)
HSV	hsv(6, 84%, 100%)
CMYK	cmyk(0%, 75.3%, 84.3%, 0%)
CIE-LAB	lab(57.05, 70.16, 56.59)
CIE-LCH	lch(57.05, 90.14, 38.89°)
OKLab	oklab(65.67% 0.1981 0.1175)
OKLCH	oklch(65.67% 0.23 30.7)
XYZ	xyz(43.4059, 24.9752, 4.5423)
Luminance	0.2497 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FF3F28 #28E8FF

analogous

#FF287C #FF3F28 #FFAB28

triadic

#FF3F28 #28FF3F #3F28FF

tetradic

#FF3F28 #7CFF28 #28E8FF #AB28FF

square

#FF3F28 #7CFF28 #28E8FF #AB28FF

split-complementary

#FF3F28 #28FFAB #287CFF

monochromatic

#AD1200 #EA1900 #FF3F28 #FF7665 #FFACA2

Accessibility & contrast

On white

3.50

#FF3F28 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.99

#FF3F28 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #FF3F28

5.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FF3F28	#FFFFFF	#000000	##000000
##FF3F28	1.00	3.50	5.99	5.99
#FFFFFF	3.50	1.00	21.00	21.00
#000000	5.99	21.00	1.00	1.00
##000000	5.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C6E22

Deuteranopia (green-blind)

#AB981B

Tritanopia (blue-blind)

#FF003C

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #ff3f28;
/* rgb */ color: rgb(255, 63, 40);
/* oklch */ color: oklch(65.7% 0.230 30.7);

Tailwind

colors: {
  custom: {
    50: '#ff8366',
    500: '#ff3f28',
    950: '#000000',
  },
}

SCSS

$custom: #ff3f28;
$custom-light: #ff8366;
$custom-dark: #000000;

JSON

{
  "hex": "#ff3f28",
  "rgb": {
    "r": 255,
    "g": 63,
    "b": 40
  },
  "hsl": {
    "h": 6.419,
    "s": 100,
    "l": 57.843
  },
  "oklch": {
    "l": 0.6567,
    "c": 0.23032,
    "h": 30.7
  },
  "luminance": 0.24968
}

Semantic roles & 50–950 ramp

primary

#FF3F28

secondary

#96E3ED

accent

#E8FF29

background

#FFF8F6

surface

#FFF0EB

border

#D7CBC6

text

#1B0C06

muted

#887D7A

Preview Lab

Preview with #FF3F28

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

Preview Lab → · Contrast checker → · Palette generator →