#181E5C#181E5C

#181E5C is a dark, moderate blue. Relative luminance 0.019; OKLCH L 27.5% C 0.110 H 272.6°. Best body text is #FFFFFF at 15.23:1 contrast (WCAG AA passes).

Color values

HEX	#181E5C
RGB	rgb(24, 30, 92)
HSL	hsl(235, 59%, 23%)
HSV	hsv(235, 74%, 36%)
CMYK	cmyk(73.9%, 67.4%, 0%, 63.9%)
CIE-LAB	lab(14.93, 20.60, -37.93)
CIE-LCH	lch(14.93, 43.16, 298.51°)
OKLab	oklab(27.49% 0.005 -0.1095)
OKLCH	oklch(27.49% 0.11 272.6)
XYZ	xyz(2.7721, 1.8952, 10.3429)
Luminance	0.0190 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181E5C #5C5618

analogous

#18405C #181E5C #34185C

triadic

#181E5C #5C181E #1E5C18

tetradic

#181E5C #5C1840 #5C5618 #185C34

square

#181E5C #5C1840 #5C5618 #185C34

split-complementary

#181E5C #5C3418 #405C18

monochromatic

#060818 #0B0E2B #181E5C #252E8D #313EBD

Accessibility & contrast

On white

15.23

#181E5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#181E5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181E5C

15.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181E5C	#FFFFFF	#000000	##FFFFFF
##181E5C	1.00	15.23	1.38	15.23
#FFFFFF	15.23	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00295E

Deuteranopia (green-blind)

#00225B

Tritanopia (blue-blind)

#002E39

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #181e5c;
/* rgb */ color: rgb(24, 30, 92);
/* oklch */ color: oklch(27.5% 0.110 272.6);

Tailwind

colors: {
  custom: {
    50: '#60598b',
    500: '#181e5c',
    950: '#000000',
  },
}

SCSS

$custom: #181e5c;
$custom-light: #60598b;
$custom-dark: #000000;

JSON

{
  "hex": "#181e5c",
  "rgb": {
    "r": 24,
    "g": 30,
    "b": 92
  },
  "hsl": {
    "h": 234.706,
    "s": 58.621,
    "l": 22.745
  },
  "oklch": {
    "l": 0.27487,
    "c": 0.10958,
    "h": 272.6
  },
  "luminance": 0.01895
}

Semantic roles & 50–950 ramp

primary

#181E5C

secondary

#938B3D

accent

#D446E2

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #181E5C

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

Preview Lab → · Contrast checker → · Palette generator →