#181A5F#181A5F

#181A5F is a dark, moderate blue. Relative luminance 0.018; OKLCH L 27.0% C 0.119 H 273.8°. Best body text is #FFFFFF at 15.53:1 contrast (WCAG AA passes).

Color values

HEX	#181A5F
RGB	rgb(24, 26, 95)
HSL	hsl(238, 60%, 23%)
HSV	hsv(238, 75%, 37%)
CMYK	cmyk(74.7%, 72.6%, 0%, 62.7%)
CIE-LAB	lab(14.17, 24.59, -41.18)
CIE-LCH	lch(14.17, 47.96, 300.85°)
OKLab	oklab(27.02% 0.0079 -0.119)
OKLCH	oklch(27.02% 0.119 273.8)
XYZ	xyz(2.8110, 1.7589, 11.0156)
Luminance	0.0176 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181A5F #5F5D18

analogous

#183D5F #181A5F #39185F

triadic

#181A5F #5F181A #1A5F18

tetradic

#181A5F #5F183D #5F5D18 #185F39

square

#181A5F #5F183D #5F5D18 #185F39

split-complementary

#181A5F #5F3918 #3D5F18

monochromatic

#060718 #0C0D2E #181A5F #242790 #3135C1

Accessibility & contrast

On white

15.53

#181A5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#181A5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181A5F

15.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181A5F	#FFFFFF	#000000	##FFFFFF
##181A5F	1.00	15.53	1.35	15.53
#FFFFFF	15.53	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002761

Deuteranopia (green-blind)

#00215E

Tritanopia (blue-blind)

#002D3A

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #181a5f;
/* rgb */ color: rgb(24, 26, 95);
/* oklch */ color: oklch(27.0% 0.119 273.8);

Tailwind

colors: {
  custom: {
    50: '#61578d',
    500: '#181a5f',
    950: '#000000',
  },
}

SCSS

$custom: #181a5f;
$custom-light: #61578d;
$custom-dark: #000000;

JSON

{
  "hex": "#181a5f",
  "rgb": {
    "r": 24,
    "g": 26,
    "b": 95
  },
  "hsl": {
    "h": 238.31,
    "s": 59.664,
    "l": 23.333
  },
  "oklch": {
    "l": 0.27024,
    "c": 0.11926,
    "h": 273.8
  },
  "luminance": 0.01759
}

Semantic roles & 50–950 ramp

primary

#181A5F

secondary

#95933D

accent

#DE45E3

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05030C

muted

#7A787D

Preview Lab

Preview with #181A5F

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

Preview Lab → · Contrast checker → · Palette generator →