#181C67#181C67

#181C67 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.2% C 0.128 H 272.4°. Best body text is #FFFFFF at 14.99:1 contrast (WCAG AA passes).

Color values

HEX	#181C67
RGB	rgb(24, 28, 103)
HSL	hsl(237, 62%, 25%)
HSV	hsv(237, 77%, 40%)
CMYK	cmyk(76.7%, 72.8%, 0%, 59.6%)
CIE-LAB	lab(15.51, 26.31, -44.28)
CIE-LCH	lch(15.51, 51.50, 300.72°)
OKLab	oklab(28.25% 0.0054 -0.128)
OKLCH	oklch(28.25% 0.128 272.4)
XYZ	xyz(3.2393, 2.0036, 13.0454)
Luminance	0.0200 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181C67 #676318

analogous

#184467 #181C67 #3C1867

triadic

#181C67 #67181C #1C6718

tetradic

#181C67 #671844 #676318 #18673C

square

#181C67 #671844 #676318 #18673C

split-complementary

#181C67 #673C18 #446718

monochromatic

#060719 #0C0F35 #181C67 #242999 #2F37CA

Accessibility & contrast

On white

14.99

#181C67 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#181C67 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181C67

14.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181C67	#FFFFFF	#000000	##FFFFFF
##181C67	1.00	14.99	1.40	14.99
#FFFFFF	14.99	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	14.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A69

Deuteranopia (green-blind)

#002366

Tritanopia (blue-blind)

#00303F

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #181c67;
/* rgb */ color: rgb(24, 28, 103);
/* oklch */ color: oklch(28.2% 0.128 272.4);

Tailwind

colors: {
  custom: {
    50: '#635893',
    500: '#181c67',
    950: '#000000',
  },
}

SCSS

$custom: #181c67;
$custom-light: #635893;
$custom-dark: #000000;

JSON

{
  "hex": "#181c67",
  "rgb": {
    "r": 24,
    "g": 28,
    "b": 103
  },
  "hsl": {
    "h": 236.962,
    "s": 62.205,
    "l": 24.902
  },
  "oklch": {
    "l": 0.28247,
    "c": 0.12816,
    "h": 272.4
  },
  "luminance": 0.02004
}

Semantic roles & 50–950 ramp

primary

#181C67

secondary

#9D983E

accent

#DD43E5

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #181C67

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

Preview Lab → · Contrast checker → · Palette generator →