#181F6D#181F6D

#181F6D is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.4% C 0.133 H 271.2°. Best body text is #FFFFFF at 14.43:1 contrast (WCAG AA passes).

Color values

HEX	#181F6D
RGB	rgb(24, 31, 109)
HSL	hsl(235, 64%, 26%)
HSV	hsv(235, 78%, 43%)
CMYK	cmyk(78%, 71.6%, 0%, 57.3%)
CIE-LAB	lab(16.88, 26.58, -45.94)
CIE-LCH	lch(16.88, 53.08, 300.06°)
OKLab	oklab(29.43% 0.0028 -0.1329)
OKLCH	oklch(29.43% 0.133 271.2)
XYZ	xyz(3.6261, 2.2779, 14.7136)
Luminance	0.0228 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181F6D #6D6618

analogous

#18496D #181F6D #3B186D

triadic

#181F6D #6D181F #1F6D18

tetradic

#181F6D #6D1849 #6D6618 #186D3B

square

#181F6D #6D1849 #6D6618 #186D3B

split-complementary

#181F6D #6D3B18 #496D18

monochromatic

#060719 #0D113B #181F6D #232D9F #2E3CD1

Accessibility & contrast

On white

14.43

#181F6D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#181F6D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181F6D

14.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181F6D	#FFFFFF	#000000	##FFFFFF
##181F6D	1.00	14.43	1.46	14.43
#FFFFFF	14.43	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E6F

Deuteranopia (green-blind)

#00266C

Tritanopia (blue-blind)

#003443

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #181f6d;
/* rgb */ color: rgb(24, 31, 109);
/* oklch */ color: oklch(29.4% 0.133 271.2);

Tailwind

colors: {
  custom: {
    50: '#645b98',
    500: '#181f6d',
    950: '#000000',
  },
}

SCSS

$custom: #181f6d;
$custom-light: #645b98;
$custom-dark: #000000;

JSON

{
  "hex": "#181f6d",
  "rgb": {
    "r": 24,
    "g": 31,
    "b": 109
  },
  "hsl": {
    "h": 235.059,
    "s": 63.91,
    "l": 26.078
  },
  "oklch": {
    "l": 0.29433,
    "c": 0.13292,
    "h": 271.2
  },
  "luminance": 0.02278
}

Semantic roles & 50–950 ramp

primary

#181F6D

secondary

#A39A3E

accent

#D941E7

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #181F6D

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

Preview Lab → · Contrast checker → · Palette generator →