#181E8F#181E8F

#181E8F is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.1% C 0.179 H 269.4°. Best body text is #FFFFFF at 12.95:1 contrast (WCAG AA passes).

Color values

HEX	#181E8F
RGB	rgb(24, 30, 143)
HSL	hsl(237, 71%, 33%)
HSV	hsv(237, 83%, 56%)
CMYK	cmyk(83.2%, 79%, 0%, 43.9%)
CIE-LAB	lab(20.46, 39.66, -61.65)
CIE-LCH	lch(20.46, 73.31, 302.75°)
OKLab	oklab(33.12% -0.0019 -0.1786)
OKLCH	oklch(33.12% 0.179 269.4)
XYZ	xyz(5.7972, 3.1052, 26.2751)
Luminance	0.0311 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181E8F #8F8918

analogous

#18598F #181E8F #4E188F

triadic

#181E8F #8F181E #1E8F18

tetradic

#181E8F #8F1859 #8F8918 #188F4E

square

#181E8F #8F1859 #8F8918 #188F4E

split-complementary

#181E8F #8F4E18 #598F18

monochromatic

#060826 #0F135B #181E8F #2129C3 #424ADF

Accessibility & contrast

On white

12.95

#181E8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#181E8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181E8F

12.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181E8F	#FFFFFF	#000000	##FFFFFF
##181E8F	1.00	12.95	1.62	12.95
#FFFFFF	12.95	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003792

Deuteranopia (green-blind)

#002B8D

Tritanopia (blue-blind)

#004056

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #181e8f;
/* rgb */ color: rgb(24, 30, 143);
/* oklch */ color: oklch(33.1% 0.179 269.4);

Tailwind

colors: {
  custom: {
    50: '#6e5cb1',
    500: '#181e8f',
    950: '#000000',
  },
}

SCSS

$custom: #181e8f;
$custom-light: #6e5cb1;
$custom-dark: #000000;

JSON

{
  "hex": "#181e8f",
  "rgb": {
    "r": 24,
    "g": 30,
    "b": 143
  },
  "hsl": {
    "h": 236.975,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.33116,
    "c": 0.17862,
    "h": 269.4
  },
  "luminance": 0.03106
}

Semantic roles & 50–950 ramp

primary

#181E8F

secondary

#C0BA43

accent

#E53AEE

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #181E8F

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

Preview Lab → · Contrast checker → · Palette generator →