#18538D#18538D

#18538D is a dark, moderate cyan. Relative luminance 0.083; OKLCH L 43.7% C 0.113 H 251.9°. Best body text is #FFFFFF at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#18538D
RGB	rgb(24, 83, 141)
HSL	hsl(210, 71%, 32%)
HSV	hsv(210, 83%, 55%)
CMYK	cmyk(83%, 41.1%, 0%, 44.7%)
CIE-LAB	lab(34.61, 3.48, -37.40)
CIE-LCH	lch(34.61, 37.56, 275.32°)
OKLab	oklab(43.67% -0.035 -0.1069)
OKLCH	oklch(43.67% 0.113 251.9)
XYZ	xyz(8.2758, 8.3028, 26.3606)
Luminance	0.0830 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18538D #8D5218

analogous

#188D8D #18538D #18188D

triadic

#18538D #8D1853 #538D18

tetradic

#18538D #8D188D #8D5218 #188D18

square

#18538D #8D188D #8D5218 #188D18

split-complementary

#18538D #8D1818 #8D8D18

monochromatic

#061524 #0F3459 #18538D #2172C1 #4190DF

Accessibility & contrast

On white

7.89

#18538D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#18538D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18538D

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18538D	#FFFFFF	#000000	##FFFFFF
##18538D	1.00	7.89	2.66	7.89
#FFFFFF	7.89	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#37578F

Deuteranopia (green-blind)

#234D8C

Tritanopia (blue-blind)

#006169

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #18538d;
/* rgb */ color: rgb(24, 83, 141);
/* oklch */ color: oklch(43.7% 0.113 251.9);

Tailwind

colors: {
  custom: {
    50: '#6982af',
    500: '#18538d',
    950: '#000000',
  },
}

SCSS

$custom: #18538d;
$custom-light: #6982af;
$custom-dark: #000000;

JSON

{
  "hex": "#18538d",
  "rgb": {
    "r": 24,
    "g": 83,
    "b": 141
  },
  "hsl": {
    "h": 209.744,
    "s": 70.909,
    "l": 32.353
  },
  "oklch": {
    "l": 0.43666,
    "c": 0.1125,
    "h": 251.9
  },
  "luminance": 0.08304
}

Semantic roles & 50–950 ramp

primary

#18538D

secondary

#BF8042

accent

#933AEE

background

#F6F7FA

surface

#ECEEF4

border

#C7C9CE

text

#070A10

muted

#7A7C7F

Preview Lab

Preview with #18538D

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

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