#FF5700#FF5700

#FF5700 is a light, highly saturated orange. Relative luminance 0.281; OKLCH L 67.8% C 0.216 H 39.3°. Best body text is #000000 at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#FF5700
RGB	rgb(255, 87, 0)
HSL	hsl(20, 100%, 50%)
HSV	hsv(20, 100%, 100%)
CMYK	cmyk(0%, 65.9%, 100%, 0%)
CIE-LAB	lab(59.96, 61.27, 70.10)
CIE-LCH	lch(59.96, 93.10, 48.85°)
OKLab	oklab(67.81% 0.1671 0.1368)
OKLCH	oklch(67.81% 0.216 39.3)
XYZ	xyz(44.6536, 28.0832, 3.0694)
Luminance	0.2808 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#FF5700 #00A8FF

analogous

#FF0028 #FF5700 #FFD700

triadic

#FF5700 #00FF57 #5700FF

tetradic

#FF5700 #28FF00 #00A8FF #D700FF

square

#FF5700 #28FF00 #00A8FF #D700FF

split-complementary

#FF5700 #00FFD7 #0028FF

monochromatic

#852D00 #C24200 #FF5700 #FF7F3D #FFA87A

Accessibility & contrast

On white

3.17

#FF5700 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.62

#FF5700 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #FF5700

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##FF5700	#FFFFFF	#000000	##000000
##FF5700	1.00	3.17	6.62	6.62
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.62	21.00	1.00	1.00
##000000	6.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A7800

Deuteranopia (green-blind)

#B39E00

Tritanopia (blue-blind)

#FF1A4B

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #ff5700;
/* rgb */ color: rgb(255, 87, 0);
/* oklch */ color: oklch(67.8% 0.216 39.3);

Tailwind

colors: {
  custom: {
    50: '#ff8e58',
    500: '#ff5700',
    950: '#000000',
  },
}

SCSS

$custom: #ff5700;
$custom-light: #ff8e58;
$custom-dark: #000000;

JSON

{
  "hex": "#ff5700",
  "rgb": {
    "r": 255,
    "g": 87,
    "b": 0
  },
  "hsl": {
    "h": 20.471,
    "s": 100,
    "l": 50
  },
  "oklch": {
    "l": 0.67807,
    "c": 0.21593,
    "h": 39.3
  },
  "luminance": 0.28076
}

Semantic roles & 50–950 ramp

primary

#FF5700

secondary

#74C0E7

accent

#B6FF29

background

#FFF9F5

surface

#FFF1E9

border

#D7CBC5

text

#1B0D04

muted

#887E79

Preview Lab

Preview with #FF5700

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

Preview Lab → · Contrast checker → · Palette generator →