#170503#170503

#170503 is a very dark, muted red. Relative luminance 0.003; OKLCH L 14.8% C 0.036 H 32.0°. Best body text is #FFFFFF at 19.82:1 contrast (WCAG AA passes).

Color values

HEX	#170503
RGB	rgb(23, 5, 3)
HSL	hsl(6, 77%, 5%)
HSV	hsv(6, 87%, 9%)
CMYK	cmyk(0%, 78.3%, 87%, 91%)
CIE-LAB	lab(2.69, 5.80, 2.90)
CIE-LCH	lch(2.69, 6.48, 26.55°)
OKLab	oklab(14.77% 0.0302 0.0189)
OKLCH	oklch(14.77% 0.036 32)
XYZ	xyz(0.4241, 0.2973, 0.1212)
Luminance	0.0030 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170503 #031517

analogous

#17030B #170503 #170F03

triadic

#170503 #031705 #050317

tetradic

#170503 #0B1703 #031517 #0F0317

square

#170503 #0B1703 #031517 #0F0317

split-complementary

#170503 #03170F #030B17

monochromatic

#1B0604 #1B0604 #1B0604 #4D110A #831D11

Accessibility & contrast

On white

19.82

#170503 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.06

#170503 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170503

19.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170503	#FFFFFF	#000000	##FFFFFF
##170503	1.00	19.82	1.06	19.82
#FFFFFF	19.82	1.00	21.00	1.00
#000000	1.06	21.00	1.00	21.00
##FFFFFF	19.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#090703

Deuteranopia (green-blind)

#0E0B03

Tritanopia (blue-blind)

#1A0305

Achromatopsia (no color)

#0A0A0A

Design tokens & code

CSS

--color: #170503;
/* rgb */ color: rgb(23, 5, 3);
/* oklch */ color: oklch(14.8% 0.036 32.0);

Tailwind

colors: {
  custom: {
    50: '#534948',
    500: '#170503',
    950: '#000000',
  },
}

SCSS

$custom: #170503;
$custom-light: #534948;
$custom-dark: #000000;

JSON

{
  "hex": "#170503",
  "rgb": {
    "r": 23,
    "g": 5,
    "b": 3
  },
  "hsl": {
    "h": 6,
    "s": 76.923,
    "l": 5.098
  },
  "oklch": {
    "l": 0.14775,
    "c": 0.03558,
    "h": 32
  },
  "luminance": 0.00297
}

Semantic roles & 50–950 ramp

primary

#170503

secondary

#1B545B

accent

#E0F334

background

#F4F4F4

surface

#E7E6E6

border

#C3C2C2

text

#020000

muted

#787777

Preview Lab

Preview with #170503

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

Preview Lab → · Contrast checker → · Palette generator →