#18555C#18555C

#18555C is a dark, moderate teal. Relative luminance 0.075; OKLCH L 41.5% C 0.061 H 206.1°. Best body text is #FFFFFF at 8.42:1 contrast (WCAG AA passes).

Color values

HEX	#18555C
RGB	rgb(24, 85, 92)
HSL	hsl(186, 59%, 23%)
HSV	hsv(186, 74%, 36%)
CMYK	cmyk(73.9%, 7.6%, 0%, 63.9%)
CIE-LAB	lab(32.84, -16.46, -9.70)
CIE-LCH	lch(32.84, 19.11, 210.51°)
OKLab	oklab(41.47% -0.055 -0.0269)
OKLCH	oklch(41.47% 0.061 206.1)
XYZ	xyz(5.5561, 7.4633, 11.2709)
Luminance	0.0746 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18555C #5C1F18

analogous

#185C41 #18555C #18335C

triadic

#18555C #5C1855 #555C18

tetradic

#18555C #41185C #5C1F18 #335C18

square

#18555C #41185C #5C1F18 #335C18

split-complementary

#18555C #5C1833 #5C4118

monochromatic

#061618 #0B282B #18555C #25828D #31AFBD

Accessibility & contrast

On white

8.42

#18555C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#18555C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18555C

8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18555C	#FFFFFF	#000000	##FFFFFF
##18555C	1.00	8.42	2.49	8.42
#FFFFFF	8.42	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D515C

Deuteranopia (green-blind)

#444A5C

Tritanopia (blue-blind)

#005957

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #18555c;
/* rgb */ color: rgb(24, 85, 92);
/* oklch */ color: oklch(41.5% 0.061 206.1);

Tailwind

colors: {
  custom: {
    50: '#60858a',
    500: '#18555c',
    950: '#000000',
  },
}

SCSS

$custom: #18555c;
$custom-light: #60858a;
$custom-dark: #000000;

JSON

{
  "hex": "#18555c",
  "rgb": {
    "r": 24,
    "g": 85,
    "b": 92
  },
  "hsl": {
    "h": 186.176,
    "s": 58.621,
    "l": 22.745
  },
  "oklch": {
    "l": 0.41469,
    "c": 0.06125,
    "h": 206.1
  },
  "luminance": 0.07464
}

Semantic roles & 50–950 ramp

primary

#18555C

secondary

#93463D

accent

#5646E2

background

#F6F8F8

surface

#EBEFF0

border

#C6CACB

text

#050B0B

muted

#7A7C7C

Preview Lab

Preview with #18555C

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

Preview Lab → · Contrast checker → · Palette generator →