#18575A#18575A

#18575A is a dark, moderate teal. Relative luminance 0.077; OKLCH L 41.9% C 0.062 H 199.7°. Best body text is #FFFFFF at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#18575A
RGB	rgb(24, 87, 90)
HSL	hsl(183, 58%, 22%)
HSV	hsv(183, 73%, 35%)
CMYK	cmyk(73.3%, 3.3%, 0%, 64.7%)
CIE-LAB	lab(33.45, -18.26, -7.52)
CIE-LCH	lch(33.45, 19.74, 202.37°)
OKLab	oklab(41.94% -0.0583 -0.0208)
OKLCH	oklch(41.94% 0.062 199.7)
XYZ	xyz(5.6295, 7.7481, 10.8697)
Luminance	0.0775 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18575A #5A1B18

analogous

#185A3C #18575A #18365A

triadic

#18575A #5A1857 #575A18

tetradic

#18575A #3C185A #5A1B18 #365A18

square

#18575A #3C185A #5A1B18 #365A18

split-complementary

#18575A #5A1836 #5A3C18

monochromatic

#061718 #0B282A #18575A #25868A #32B4BB

Accessibility & contrast

On white

8.24

#18575A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#18575A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18575A

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18575A	#FFFFFF	#000000	##FFFFFF
##18575A	1.00	8.24	2.55	8.24
#FFFFFF	8.24	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#50535A

Deuteranopia (green-blind)

#464C5A

Tritanopia (blue-blind)

#005A58

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #18575a;
/* rgb */ color: rgb(24, 87, 90);
/* oklch */ color: oklch(41.9% 0.062 199.7);

Tailwind

colors: {
  custom: {
    50: '#608688',
    500: '#18575a',
    950: '#000000',
  },
}

SCSS

$custom: #18575a;
$custom-light: #608688;
$custom-dark: #000000;

JSON

{
  "hex": "#18575a",
  "rgb": {
    "r": 24,
    "g": 87,
    "b": 90
  },
  "hsl": {
    "h": 182.727,
    "s": 57.895,
    "l": 22.353
  },
  "oklch": {
    "l": 0.4194,
    "c": 0.06192,
    "h": 199.7
  },
  "luminance": 0.07749
}

Semantic roles & 50–950 ramp

primary

#18575A

secondary

#91413D

accent

#4E47E1

background

#F6F8F8

surface

#EBEFEF

border

#C6CACA

text

#050B0B

muted

#7A7C7C

Preview Lab

Preview with #18575A

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

Preview Lab → · Contrast checker → · Palette generator →