#180E54#180E54

#180E54 is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 23.8% C 0.118 H 279.0°. Best body text is #FFFFFF at 17.08:1 contrast (WCAG AA passes).

Color values

HEX	#180E54
RGB	rgb(24, 14, 84)
HSL	hsl(249, 71%, 19%)
HSV	hsv(249, 83%, 33%)
CMYK	cmyk(71.4%, 83.3%, 0%, 67.1%)
CIE-LAB	lab(10.17, 28.24, -40.34)
CIE-LCH	lch(10.17, 49.24, 305.00°)
OKLab	oklab(23.81% 0.0185 -0.1165)
OKLCH	oklch(23.81% 0.118 279)
XYZ	xyz(2.1334, 1.1482, 8.4950)
Luminance	0.0115 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180E54 #4A540E

analogous

#0E2754 #180E54 #3B0E54

triadic

#180E54 #54180E #0E5418

tetradic

#180E54 #540E27 #4A540E #0E543B

square

#180E54 #540E27 #4A540E #0E543B

split-complementary

#180E54 #543B0E #27540E

monochromatic

#07041A #090520 #180E54 #271788 #361FBD

Accessibility & contrast

On white

17.08

#180E54 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#180E54 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180E54

17.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180E54	#FFFFFF	#000000	##FFFFFF
##180E54	1.00	17.08	1.23	17.08
#FFFFFF	17.08	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E56

Deuteranopia (green-blind)

#001953

Tritanopia (blue-blind)

#002330

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #180e54;
/* rgb */ color: rgb(24, 14, 84);
/* oklch */ color: oklch(23.8% 0.118 279.0);

Tailwind

colors: {
  custom: {
    50: '#5f4e85',
    500: '#180e54',
    950: '#000000',
  },
}

SCSS

$custom: #180e54;
$custom-light: #5f4e85;
$custom-dark: #000000;

JSON

{
  "hex": "#180e54",
  "rgb": {
    "r": 24,
    "g": 14,
    "b": 84
  },
  "hsl": {
    "h": 248.571,
    "s": 71.429,
    "l": 19.216
  },
  "oklch": {
    "l": 0.23806,
    "c": 0.11794,
    "h": 279
  },
  "luminance": 0.01148
}

Semantic roles & 50–950 ramp

primary

#180E54

secondary

#818E2F

accent

#EE3AD4

background

#F5F4F8

surface

#EAE7EF

border

#C6C3CA

text

#05020B

muted

#79787C

Preview Lab

Preview with #180E54

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

Preview Lab → · Contrast checker → · Palette generator →