#18316F#18316F

#18316F is a dark, moderate blue. Relative luminance 0.035; OKLCH L 33.3% C 0.112 H 264.5°. Best body text is #FFFFFF at 12.30:1 contrast (WCAG AA passes).

Color values

HEX	#18316F
RGB	rgb(24, 49, 111)
HSL	hsl(223, 64%, 26%)
HSV	hsv(223, 78%, 44%)
CMYK	cmyk(78.4%, 55.9%, 0%, 56.5%)
CIE-LAB	lab(22.08, 14.61, -38.75)
CIE-LCH	lch(22.08, 41.41, 290.66°)
OKLab	oklab(33.35% -0.0107 -0.1116)
OKLCH	oklch(33.35% 0.112 264.5)
XYZ	xyz(4.3432, 3.5380, 15.4899)
Luminance	0.0354 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18316F #6F5618

analogous

#185D6F #18316F #2B186F

triadic

#18316F #6F1831 #316F18

tetradic

#18316F #6F185D #6F5618 #186F2B

square

#18316F #6F185D #6F5618 #186F2B

split-complementary

#18316F #6F2B18 #5D6F18

monochromatic

#050B19 #0D1B3D #18316F #2347A1 #2F5ED2

Accessibility & contrast

On white

12.30

#18316F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#18316F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18316F

12.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18316F	#FFFFFF	#000000	##FFFFFF
##18316F	1.00	12.30	1.71	12.30
#FFFFFF	12.30	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#043971

Deuteranopia (green-blind)

#00316E

Tritanopia (blue-blind)

#00404B

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #18316f;
/* rgb */ color: rgb(24, 49, 111);
/* oklch */ color: oklch(33.3% 0.112 264.5);

Tailwind

colors: {
  custom: {
    50: '#636899',
    500: '#18316f',
    950: '#000000',
  },
}

SCSS

$custom: #18316f;
$custom-light: #636899;
$custom-dark: #000000;

JSON

{
  "hex": "#18316f",
  "rgb": {
    "r": 24,
    "g": 49,
    "b": 111
  },
  "hsl": {
    "h": 222.759,
    "s": 64.444,
    "l": 26.471
  },
  "oklch": {
    "l": 0.33349,
    "c": 0.1121,
    "h": 264.5
  },
  "luminance": 0.03539
}

Semantic roles & 50–950 ramp

primary

#18316F

secondary

#A5873E

accent

#B740E7

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #18316F

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

Preview Lab → · Contrast checker → · Palette generator →