#18437B#18437B

#18437B is a dark, moderate cyan. Relative luminance 0.056; OKLCH L 38.5% C 0.106 H 256.5°. Best body text is #FFFFFF at 9.87:1 contrast (WCAG AA passes).

Color values

HEX	#18437B
RGB	rgb(24, 67, 123)
HSL	hsl(214, 67%, 29%)
HSV	hsv(214, 80%, 48%)
CMYK	cmyk(80.5%, 45.5%, 0%, 51.8%)
CIE-LAB	lab(28.48, 6.89, -36.06)
CIE-LCH	lch(28.48, 36.72, 280.82°)
OKLab	oklab(38.53% -0.0248 -0.1033)
OKLCH	oklch(38.53% 0.106 256.5)
XYZ	xyz(5.9577, 5.6379, 19.5093)
Luminance	0.0564 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18437B #7B5018

analogous

#18757B #18437B #1E187B

triadic

#18437B #7B1843 #437B18

tetradic

#18437B #7B1875 #7B5018 #187B1E

square

#18437B #7B1875 #7B5018 #187B1E

split-complementary

#18437B #7B1E18 #757B18

monochromatic

#050E1A #0E2748 #18437B #225FAE #367CD8

Accessibility & contrast

On white

9.87

#18437B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#18437B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18437B

9.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18437B	#FFFFFF	#000000	##FFFFFF
##18437B	1.00	9.87	2.13	9.87
#FFFFFF	9.87	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27487D

Deuteranopia (green-blind)

#133F7A

Tritanopia (blue-blind)

#005059

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #18437b;
/* rgb */ color: rgb(24, 67, 123);
/* oklch */ color: oklch(38.5% 0.106 256.5);

Tailwind

colors: {
  custom: {
    50: '#6576a1',
    500: '#18437b',
    950: '#000000',
  },
}

SCSS

$custom: #18437b;
$custom-light: #6576a1;
$custom-dark: #000000;

JSON

{
  "hex": "#18437b",
  "rgb": {
    "r": 24,
    "g": 67,
    "b": 123
  },
  "hsl": {
    "h": 213.939,
    "s": 67.347,
    "l": 28.824
  },
  "oklch": {
    "l": 0.38532,
    "c": 0.10626,
    "h": 256.5
  },
  "luminance": 0.05639
}

Semantic roles & 50–950 ramp

primary

#18437B

secondary

#B07F3F

accent

#9F3EEA

background

#F6F7FA

surface

#EBEDF3

border

#C6C8CD

text

#06080F

muted

#7A7B7F

Preview Lab

Preview with #18437B

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

Preview Lab → · Contrast checker → · Palette generator →