#18403D#18403D

#18403D is a dark, muted teal. Relative luminance 0.042; OKLCH L 34.2% C 0.045 H 188.6°. Best body text is #FFFFFF at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#18403D
RGB	rgb(24, 64, 61)
HSL	hsl(176, 45%, 17%)
HSV	hsv(176, 63%, 25%)
CMYK	cmyk(62.5%, 0%, 4.7%, 74.9%)
CIE-LAB	lab(24.31, -14.85, -2.41)
CIE-LCH	lch(24.31, 15.04, 189.24°)
OKLab	oklab(34.2% -0.0446 -0.0068)
OKLCH	oklch(34.2% 0.045 188.6)
XYZ	xyz(3.0520, 4.1976, 5.0634)
Luminance	0.0420 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18403D #40181B

analogous

#184029 #18403D #182F40

triadic

#18403D #3D1840 #403D18

tetradic

#18403D #291840 #40181B #2F4018

square

#18403D #291840 #40181B #2F4018

split-complementary

#18403D #40182F #402918

monochromatic

#081615 #081615 #18403D #296D67 #399992

Accessibility & contrast

On white

11.42

#18403D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#18403D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18403D

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18403D	#FFFFFF	#000000	##FFFFFF
##18403D	1.00	11.42	1.84	11.42
#FFFFFF	11.42	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C3D3D

Deuteranopia (green-blind)

#36383D

Tritanopia (blue-blind)

#00423F

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #18403d;
/* rgb */ color: rgb(24, 64, 61);
/* oklch */ color: oklch(34.2% 0.045 188.6);

Tailwind

colors: {
  custom: {
    50: '#5a7572',
    500: '#18403d',
    950: '#000000',
  },
}

SCSS

$custom: #18403d;
$custom-light: #5a7572;
$custom-dark: #000000;

JSON

{
  "hex": "#18403d",
  "rgb": {
    "r": 24,
    "g": 64,
    "b": 61
  },
  "hsl": {
    "h": 175.5,
    "s": 45.455,
    "l": 17.255
  },
  "oklch": {
    "l": 0.34204,
    "c": 0.04514,
    "h": 188.6
  },
  "luminance": 0.04198
}

Semantic roles & 50–950 ramp

primary

#18403D

secondary

#773D42

accent

#535CD5

background

#F5F7F6

surface

#E9EDEC

border

#C5C8C7

text

#040808

muted

#797B7B

Preview Lab

Preview with #18403D

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

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