#180E52#180E52

#180E52 is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 23.6% C 0.115 H 279.5°. Best body text is #FFFFFF at 17.17:1 contrast (WCAG AA passes).

Color values

HEX	#180E52
RGB	rgb(24, 14, 82)
HSL	hsl(249, 71%, 19%)
HSV	hsv(249, 83%, 32%)
CMYK	cmyk(70.7%, 82.9%, 0%, 67.8%)
CIE-LAB	lab(9.93, 27.54, -39.36)
CIE-LCH	lch(9.93, 48.04, 304.98°)
OKLab	oklab(23.57% 0.019 -0.1136)
OKLCH	oklch(23.57% 0.115 279.5)
XYZ	xyz(2.0562, 1.1173, 8.0883)
Luminance	0.0112 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180E52 #48520E

analogous

#0E2652 #180E52 #3A0E52

triadic

#180E52 #52180E #0E5218

tetradic

#180E52 #520E26 #48520E #0E523A

square

#180E52 #520E26 #48520E #0E523A

split-complementary

#180E52 #523A0E #26520E

monochromatic

#08041A #09051E #180E52 #271786 #3720BB

Accessibility & contrast

On white

17.17

#180E52 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#180E52 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180E52

17.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180E52	#FFFFFF	#000000	##FFFFFF
##180E52	1.00	17.17	1.22	17.17
#FFFFFF	17.17	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E54

Deuteranopia (green-blind)

#001951

Tritanopia (blue-blind)

#00222F

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #180e52;
/* rgb */ color: rgb(24, 14, 82);
/* oklch */ color: oklch(23.6% 0.115 279.5);

Tailwind

colors: {
  custom: {
    50: '#5f4e83',
    500: '#180e52',
    950: '#000000',
  },
}

SCSS

$custom: #180e52;
$custom-light: #5f4e83;
$custom-dark: #000000;

JSON

{
  "hex": "#180e52",
  "rgb": {
    "r": 24,
    "g": 14,
    "b": 82
  },
  "hsl": {
    "h": 248.824,
    "s": 70.833,
    "l": 18.824
  },
  "oklch": {
    "l": 0.23569,
    "c": 0.11522,
    "h": 279.5
  },
  "luminance": 0.01117
}

Semantic roles & 50–950 ramp

primary

#180E52

secondary

#7F8C2F

accent

#EE3AD3

background

#F5F4F8

surface

#EAE7EF

border

#C6C3CA

text

#05010B

muted

#79777C

Preview Lab

Preview with #180E52

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

Preview Lab → · Contrast checker → · Palette generator →