#18337E#18337E

#18337E is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.1% C 0.131 H 265.1°. Best body text is #FFFFFF at 11.58:1 contrast (WCAG AA passes).

Color values

HEX	#18337E
RGB	rgb(24, 51, 126)
HSL	hsl(224, 68%, 29%)
HSV	hsv(224, 81%, 49%)
CMYK	cmyk(81%, 59.5%, 0%, 50.6%)
CIE-LAB	lab(23.89, 19.37, -45.36)
CIE-LCH	lch(23.89, 49.32, 293.12°)
OKLab	oklab(35.1% -0.0112 -0.131)
OKLCH	oklch(35.1% 0.131 265.1)
XYZ	xyz(5.3251, 4.0676, 20.2391)
Luminance	0.0407 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18337E #7E6318

analogous

#18667E #18337E #30187E

triadic

#18337E #7E1833 #337E18

tetradic

#18337E #7E1866 #7E6318 #187E30

square

#18337E #7E1866 #7E6318 #187E30

split-complementary

#18337E #7E3018 #667E18

monochromatic

#050A1A #0E1E4B #18337E #2248B1 #3762D9

Accessibility & contrast

On white

11.58

#18337E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#18337E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18337E

11.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18337E	#FFFFFF	#000000	##FFFFFF
##18337E	1.00	11.58	1.81	11.58
#FFFFFF	11.58	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E81

Deuteranopia (green-blind)

#00347D

Tritanopia (blue-blind)

#004653

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #18337e;
/* rgb */ color: rgb(24, 51, 126);
/* oklch */ color: oklch(35.1% 0.131 265.1);

Tailwind

colors: {
  custom: {
    50: '#676aa4',
    500: '#18337e',
    950: '#000000',
  },
}

SCSS

$custom: #18337e;
$custom-light: #676aa4;
$custom-dark: #000000;

JSON

{
  "hex": "#18337e",
  "rgb": {
    "r": 24,
    "g": 51,
    "b": 126
  },
  "hsl": {
    "h": 224.118,
    "s": 68,
    "l": 29.412
  },
  "oklch": {
    "l": 0.35102,
    "c": 0.13146,
    "h": 265.1
  },
  "luminance": 0.04068
}

Semantic roles & 50–950 ramp

primary

#18337E

secondary

#B2943F

accent

#BD3DEB

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #18337E

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

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