#181C6C#181C6C

#181C6C is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.8% C 0.135 H 272.0°. Best body text is #FFFFFF at 14.77:1 contrast (WCAG AA passes).

Color values

HEX	#181C6C
RGB	rgb(24, 28, 108)
HSL	hsl(237, 64%, 26%)
HSV	hsv(237, 78%, 42%)
CMYK	cmyk(77.8%, 74.1%, 0%, 57.6%)
CIE-LAB	lab(16.04, 28.21, -46.67)
CIE-LCH	lch(16.04, 54.54, 301.15°)
OKLab	oklab(28.79% 0.0047 -0.135)
OKLCH	oklch(28.79% 0.135 272)
XYZ	xyz(3.4978, 2.1070, 14.4068)
Luminance	0.0211 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181C6C #6C6818

analogous

#18466C #181C6C #3E186C

triadic

#181C6C #6C181C #1C6C18

tetradic

#181C6C #6C1846 #6C6818 #186C3E

square

#181C6C #6C1846 #6C6818 #186C3E

split-complementary

#181C6C #6C3E18 #466C18

monochromatic

#060619 #0D0F3A #181C6C #23299E #2E36D0

Accessibility & contrast

On white

14.77

#181C6C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#181C6C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181C6C

14.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181C6C	#FFFFFF	#000000	##FFFFFF
##181C6C	1.00	14.77	1.42	14.77
#FFFFFF	14.77	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C6E

Deuteranopia (green-blind)

#00246B

Tritanopia (blue-blind)

#003241

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #181c6c;
/* rgb */ color: rgb(24, 28, 108);
/* oklch */ color: oklch(28.8% 0.135 272.0);

Tailwind

colors: {
  custom: {
    50: '#645897',
    500: '#181c6c',
    950: '#000000',
  },
}

SCSS

$custom: #181c6c;
$custom-light: #645897;
$custom-dark: #000000;

JSON

{
  "hex": "#181c6c",
  "rgb": {
    "r": 24,
    "g": 28,
    "b": 108
  },
  "hsl": {
    "h": 237.143,
    "s": 63.636,
    "l": 25.882
  },
  "oklch": {
    "l": 0.28792,
    "c": 0.13513,
    "h": 272
  },
  "luminance": 0.02107
}

Semantic roles & 50–950 ramp

primary

#181C6C

secondary

#A29D3E

accent

#DF41E7

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06030E

muted

#7A787E

Preview Lab

Preview with #181C6C

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

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