#180E55#180E55

#180E55 is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.9% C 0.119 H 278.8°. Best body text is #FFFFFF at 17.03:1 contrast (WCAG AA passes).

Color values

HEX	#180E55
RGB	rgb(24, 14, 85)
HSL	hsl(248, 72%, 19%)
HSV	hsv(248, 84%, 33%)
CMYK	cmyk(71.8%, 83.5%, 0%, 66.7%)
CIE-LAB	lab(10.29, 28.59, -40.83)
CIE-LCH	lch(10.29, 49.84, 305.01°)
OKLab	oklab(23.93% 0.0182 -0.1179)
OKLCH	oklch(23.93% 0.119 278.8)
XYZ	xyz(2.1729, 1.1640, 8.7027)
Luminance	0.0116 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180E55 #4B550E

analogous

#0E2855 #180E55 #3C0E55

triadic

#180E55 #55180E #0E5518

tetradic

#180E55 #550E28 #4B550E #0E553C

square

#180E55 #550E28 #4B550E #0E553C

split-complementary

#180E55 #553C0E #28550E

monochromatic

#07041A #090520 #180E55 #27178A #361FBE

Accessibility & contrast

On white

17.03

#180E55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#180E55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180E55

17.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180E55	#FFFFFF	#000000	##FFFFFF
##180E55	1.00	17.03	1.23	17.03
#FFFFFF	17.03	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001F57

Deuteranopia (green-blind)

#001954

Tritanopia (blue-blind)

#002331

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #180e55;
/* rgb */ color: rgb(24, 14, 85);
/* oklch */ color: oklch(23.9% 0.119 278.8);

Tailwind

colors: {
  custom: {
    50: '#5f4e86',
    500: '#180e55',
    950: '#000000',
  },
}

SCSS

$custom: #180e55;
$custom-light: #5f4e86;
$custom-dark: #000000;

JSON

{
  "hex": "#180e55",
  "rgb": {
    "r": 24,
    "g": 14,
    "b": 85
  },
  "hsl": {
    "h": 248.451,
    "s": 71.717,
    "l": 19.412
  },
  "oklch": {
    "l": 0.23925,
    "c": 0.1193,
    "h": 278.8
  },
  "luminance": 0.01164
}

Semantic roles & 50–950 ramp

primary

#180E55

secondary

#828F30

accent

#EE39D5

background

#F6F4F8

surface

#EBE7EF

border

#C6C3CA

text

#05020B

muted

#7A787C

Preview Lab

Preview with #180E55

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

Preview Lab → · Contrast checker → · Palette generator →