#18437D#18437D

#18437D is a dark, moderate cyan. Relative luminance 0.057; OKLCH L 38.7% C 0.109 H 257.1°. Best body text is #FFFFFF at 9.82:1 contrast (WCAG AA passes).

Color values

HEX	#18437D
RGB	rgb(24, 67, 125)
HSL	hsl(214, 68%, 29%)
HSV	hsv(214, 81%, 49%)
CMYK	cmyk(80.8%, 46.4%, 0%, 51%)
CIE-LAB	lab(28.61, 7.72, -37.10)
CIE-LCH	lch(28.61, 37.90, 281.75°)
OKLab	oklab(38.68% -0.0244 -0.1064)
OKLCH	oklch(38.68% 0.109 257.1)
XYZ	xyz(6.0842, 5.6885, 20.1754)
Luminance	0.0569 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18437D #7D5218

analogous

#18767D #18437D #1F187D

triadic

#18437D #7D1843 #437D18

tetradic

#18437D #7D1876 #7D5218 #187D1F

square

#18437D #7D1876 #7D5218 #187D1F

split-complementary

#18437D #7D1F18 #767D18

monochromatic

#050E1A #0E274A #18437D #225FB0 #377CD9

Accessibility & contrast

On white

9.82

#18437D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#18437D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18437D

9.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18437D	#FFFFFF	#000000	##FFFFFF
##18437D	1.00	9.82	2.14	9.82
#FFFFFF	9.82	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25487F

Deuteranopia (green-blind)

#0F3F7C

Tritanopia (blue-blind)

#00515A

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #18437d;
/* rgb */ color: rgb(24, 67, 125);
/* oklch */ color: oklch(38.7% 0.109 257.1);

Tailwind

colors: {
  custom: {
    50: '#6676a3',
    500: '#18437d',
    950: '#000000',
  },
}

SCSS

$custom: #18437d;
$custom-light: #6676a3;
$custom-dark: #000000;

JSON

{
  "hex": "#18437d",
  "rgb": {
    "r": 24,
    "g": 67,
    "b": 125
  },
  "hsl": {
    "h": 214.455,
    "s": 67.785,
    "l": 29.216
  },
  "oklch": {
    "l": 0.38678,
    "c": 0.10913,
    "h": 257.1
  },
  "luminance": 0.05689
}

Semantic roles & 50–950 ramp

primary

#18437D

secondary

#B2813F

accent

#A13DEB

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #18437D

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

Preview Lab → · Contrast checker → · Palette generator →