#180D63#180D63

#180D63 is a dark, vivid blue. Relative luminance 0.014; OKLCH L 25.5% C 0.139 H 275.9°. Best body text is #FFFFFF at 16.45:1 contrast (WCAG AA passes).

Color values

HEX	#180D63
RGB	rgb(24, 13, 99)
HSL	hsl(248, 77%, 22%)
HSV	hsv(248, 87%, 39%)
CMYK	cmyk(75.8%, 86.9%, 0%, 61.2%)
CIE-LAB	lab(11.84, 33.90, -47.68)
CIE-LCH	lch(11.84, 58.50, 305.41°)
OKLab	oklab(25.52% 0.0144 -0.1378)
OKLCH	oklch(25.52% 0.139 275.9)
XYZ	xyz(2.7720, 1.3826, 11.9227)
Luminance	0.0138 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180D63 #58630D

analogous

#0D2D63 #180D63 #430D63

triadic

#180D63 #63180D #0D6318

tetradic

#180D63 #630D2D #58630D #0D6343

square

#180D63 #630D2D #58630D #0D6343

split-complementary

#180D63 #63430D #2D630D

monochromatic

#07041B #0B062D #180D63 #251499 #321BCF

Accessibility & contrast

On white

16.45

#180D63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#180D63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180D63

16.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180D63	#FFFFFF	#000000	##FFFFFF
##180D63	1.00	16.45	1.28	16.45
#FFFFFF	16.45	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002365

Deuteranopia (green-blind)

#001B62

Tritanopia (blue-blind)

#002839

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #180d63;
/* rgb */ color: rgb(24, 13, 99);
/* oklch */ color: oklch(25.5% 0.139 275.9);

Tailwind

colors: {
  custom: {
    50: '#634f90',
    500: '#180d63',
    950: '#000000',
  },
}

SCSS

$custom: #180d63;
$custom-light: #634f90;
$custom-dark: #000000;

JSON

{
  "hex": "#180d63",
  "rgb": {
    "r": 24,
    "g": 13,
    "b": 99
  },
  "hsl": {
    "h": 247.674,
    "s": 76.786,
    "l": 21.961
  },
  "oklch": {
    "l": 0.25515,
    "c": 0.13857,
    "h": 275.9
  },
  "luminance": 0.01383
}

Semantic roles & 50–950 ramp

primary

#180D63

secondary

#8F9D2F

accent

#F334DB

background

#F6F4F9

surface

#EBE7F1

border

#C6C3CB

text

#06020D

muted

#7A787E

Preview Lab

Preview with #180D63

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

Preview Lab → · Contrast checker → · Palette generator →