#181A64#181A64

#181A64 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 27.6% C 0.126 H 273.2°. Best body text is #FFFFFF at 15.32:1 contrast (WCAG AA passes).

Color values

HEX	#181A64
RGB	rgb(24, 26, 100)
HSL	hsl(238, 61%, 24%)
HSV	hsv(238, 76%, 39%)
CMYK	cmyk(76%, 74%, 0%, 60.8%)
CIE-LAB	lab(14.70, 26.51, -43.63)
CIE-LCH	lch(14.70, 51.05, 301.28°)
OKLab	oklab(27.57% 0.0072 -0.1262)
OKLCH	oklch(27.57% 0.126 273.2)
XYZ	xyz(3.0456, 1.8528, 12.2512)
Luminance	0.0185 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A64 #646218

analogous

#184064 #181A64 #3C1864

triadic

#181A64 #64181A #1A6418

tetradic

#181A64 #641840 #646218 #18643C

square

#181A64 #641840 #646218 #18643C

split-complementary

#181A64 #643C18 #406418

monochromatic

#060619 #0C0D33 #181A64 #242795 #3034C7

Accessibility & contrast

On white

15.32

#181A64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#181A64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A64

15.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A64	#FFFFFF	#000000	##FFFFFF
##181A64	1.00	15.32	1.37	15.32
#FFFFFF	15.32	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002966

Deuteranopia (green-blind)

#002163

Tritanopia (blue-blind)

#002E3C

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #181a64;
/* rgb */ color: rgb(24, 26, 100);
/* oklch */ color: oklch(27.6% 0.126 273.2);

Tailwind

colors: {
  custom: {
    50: '#625791',
    500: '#181a64',
    950: '#000000',
  },
}

SCSS

$custom: #181a64;
$custom-light: #625791;
$custom-dark: #000000;

JSON

{
  "hex": "#181a64",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 100
  },
  "hsl": {
    "h": 238.421,
    "s": 61.29,
    "l": 24.314
  },
  "oklch": {
    "l": 0.27565,
    "c": 0.12637,
    "h": 273.2
  },
  "luminance": 0.01853
}

Semantic roles & 50–950 ramp

primary

#181A64

secondary

#9A983E

accent

#E043E4

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #181A64

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

Preview Lab → · Contrast checker → · Palette generator →