#18536D#18536D

#18536D is a dark, moderate cyan. Relative luminance 0.075; OKLCH L 41.7% C 0.073 H 231.6°. Best body text is #FFFFFF at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#18536D
RGB	rgb(24, 83, 109)
HSL	hsl(198, 64%, 26%)
HSV	hsv(198, 78%, 43%)
CMYK	cmyk(78%, 23.9%, 0%, 57.3%)
CIE-LAB	lab(32.88, -9.12, -20.33)
CIE-LCH	lch(32.88, 22.28, 245.84°)
OKLab	oklab(41.74% -0.0453 -0.0571)
OKLCH	oklch(41.74% 0.073 231.6)
XYZ	xyz(6.2292, 7.4841, 15.5813)
Luminance	0.0748 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18536D #6D3218

analogous

#186D5C #18536D #18286D

triadic

#18536D #6D1853 #536D18

tetradic

#18536D #5C186D #6D3218 #286D18

square

#18536D #5C186D #6D3218 #286D18

split-complementary

#18536D #6D1828 #6D5C18

monochromatic

#061319 #0D2D3B #18536D #23799F #2E9FD1

Accessibility & contrast

On white

8.41

#18536D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#18536D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18536D

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18536D	#FFFFFF	#000000	##FFFFFF
##18536D	1.00	8.41	2.50	8.41
#FFFFFF	8.41	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#46526E

Deuteranopia (green-blind)

#3A4A6D

Tritanopia (blue-blind)

#005A5C

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #18536d;
/* rgb */ color: rgb(24, 83, 109);
/* oklch */ color: oklch(41.7% 0.073 231.6);

Tailwind

colors: {
  custom: {
    50: '#638397',
    500: '#18536d',
    950: '#000000',
  },
}

SCSS

$custom: #18536d;
$custom-light: #638397;
$custom-dark: #000000;

JSON

{
  "hex": "#18536d",
  "rgb": {
    "r": 24,
    "g": 83,
    "b": 109
  },
  "hsl": {
    "h": 198.353,
    "s": 63.91,
    "l": 26.078
  },
  "oklch": {
    "l": 0.41744,
    "c": 0.07294,
    "h": 231.6
  },
  "luminance": 0.07485
}

Semantic roles & 50–950 ramp

primary

#18536D

secondary

#A35D3E

accent

#7441E7

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060A0D

muted

#7A7C7E

Preview Lab

Preview with #18536D

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

Preview Lab → · Contrast checker → · Palette generator →