#181E5D#181E5D

#181E5D is a dark, moderate blue. Relative luminance 0.019; OKLCH L 27.6% C 0.111 H 272.5°. Best body text is #FFFFFF at 15.19:1 contrast (WCAG AA passes).

Color values

HEX	#181E5D
RGB	rgb(24, 30, 93)
HSL	hsl(235, 59%, 23%)
HSV	hsv(235, 74%, 36%)
CMYK	cmyk(74.2%, 67.7%, 0%, 63.5%)
CIE-LAB	lab(15.02, 21.00, -38.44)
CIE-LCH	lch(15.02, 43.80, 298.64°)
OKLab	oklab(27.59% 0.0049 -0.111)
OKLCH	oklch(27.59% 0.111 272.5)
XYZ	xyz(2.8161, 1.9128, 10.5746)
Luminance	0.0191 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181E5D #5D5718

analogous

#18405D #181E5D #35185D

triadic

#181E5D #5D181E #1E5D18

tetradic

#181E5D #5D1840 #5D5718 #185D35

square

#181E5D #5D1840 #5D5718 #185D35

split-complementary

#181E5D #5D3518 #405D18

monochromatic

#060818 #0B0E2C #181E5D #252E8E #313DBE

Accessibility & contrast

On white

15.19

#181E5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#181E5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181E5D

15.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181E5D	#FFFFFF	#000000	##FFFFFF
##181E5D	1.00	15.19	1.38	15.19
#FFFFFF	15.19	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00295F

Deuteranopia (green-blind)

#00235C

Tritanopia (blue-blind)

#002E3A

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #181e5d;
/* rgb */ color: rgb(24, 30, 93);
/* oklch */ color: oklch(27.6% 0.111 272.5);

Tailwind

colors: {
  custom: {
    50: '#60598c',
    500: '#181e5d',
    950: '#000000',
  },
}

SCSS

$custom: #181e5d;
$custom-light: #60598c;
$custom-dark: #000000;

JSON

{
  "hex": "#181e5d",
  "rgb": {
    "r": 24,
    "g": 30,
    "b": 93
  },
  "hsl": {
    "h": 234.783,
    "s": 58.974,
    "l": 22.941
  },
  "oklch": {
    "l": 0.27586,
    "c": 0.11108,
    "h": 272.5
  },
  "luminance": 0.01913
}

Semantic roles & 50–950 ramp

primary

#181E5D

secondary

#938C3D

accent

#D546E2

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05030C

muted

#7A787D

Preview Lab

Preview with #181E5D

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

Preview Lab → · Contrast checker → · Palette generator →