#180E53#180E53

#180E53 is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 23.7% C 0.117 H 279.2°. Best body text is #FFFFFF at 17.12:1 contrast (WCAG AA passes).

Color values

HEX	#180E53
RGB	rgb(24, 14, 83)
HSL	hsl(249, 71%, 19%)
HSV	hsv(249, 83%, 33%)
CMYK	cmyk(71.1%, 83.1%, 0%, 67.5%)
CIE-LAB	lab(10.05, 27.89, -39.85)
CIE-LCH	lch(10.05, 48.65, 304.99°)
OKLab	oklab(23.69% 0.0187 -0.1151)
OKLCH	oklch(23.69% 0.117 279.2)
XYZ	xyz(2.0946, 1.1326, 8.2902)
Luminance	0.0113 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180E53 #49530E

analogous

#0E2753 #180E53 #3B0E53

triadic

#180E53 #53180E #0E5318

tetradic

#180E53 #530E27 #49530E #0E533B

square

#180E53 #530E27 #49530E #0E533B

split-complementary

#180E53 #533B0E #27530E

monochromatic

#08041A #09051F #180E53 #271787 #3620BC

Accessibility & contrast

On white

17.12

#180E53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#180E53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180E53

17.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180E53	#FFFFFF	#000000	##FFFFFF
##180E53	1.00	17.12	1.23	17.12
#FFFFFF	17.12	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E55

Deuteranopia (green-blind)

#001952

Tritanopia (blue-blind)

#002230

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #180e53;
/* rgb */ color: rgb(24, 14, 83);
/* oklch */ color: oklch(23.7% 0.117 279.2);

Tailwind

colors: {
  custom: {
    50: '#5f4e84',
    500: '#180e53',
    950: '#000000',
  },
}

SCSS

$custom: #180e53;
$custom-light: #5f4e84;
$custom-dark: #000000;

JSON

{
  "hex": "#180e53",
  "rgb": {
    "r": 24,
    "g": 14,
    "b": 83
  },
  "hsl": {
    "h": 248.696,
    "s": 71.134,
    "l": 19.02
  },
  "oklch": {
    "l": 0.23687,
    "c": 0.11659,
    "h": 279.2
  },
  "luminance": 0.01133
}

Semantic roles & 50–950 ramp

primary

#180E53

secondary

#808D2F

accent

#EE3AD4

background

#F5F4F8

surface

#EAE7EF

border

#C6C3CA

text

#05010B

muted

#79777C

Preview Lab

Preview with #180E53

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

Preview Lab → · Contrast checker → · Palette generator →