#180F6D#180F6D

#180F6D is a dark, vivid blue. Relative luminance 0.016; OKLCH L 27.0% C 0.150 H 274.0°. Best body text is #FFFFFF at 15.81:1 contrast (WCAG AA passes).

Color values

HEX	#180F6D
RGB	rgb(24, 15, 109)
HSL	hsl(246, 76%, 24%)
HSV	hsv(246, 86%, 43%)
CMYK	cmyk(78%, 86.2%, 0%, 57.3%)
CIE-LAB	lab(13.47, 36.21, -51.57)
CIE-LCH	lch(13.47, 63.01, 305.07°)
OKLab	oklab(27.01% 0.0106 -0.1491)
OKLCH	oklch(27.01% 0.15 274)
XYZ	xyz(3.3069, 1.6396, 14.6072)
Luminance	0.0164 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180F6D #646D0F

analogous

#0F356D #180F6D #470F6D

triadic

#180F6D #6D180F #0F6D18

tetradic

#180F6D #6D0F35 #646D0F #0F6D47

square

#180F6D #6D0F35 #646D0F #0F6D47

split-complementary

#180F6D #6D470F #356D0F

monochromatic

#06041B #0C0837 #180F6D #2416A3 #301ED9

Accessibility & contrast

On white

15.81

#180F6D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#180F6D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180F6D

15.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180F6D	#FFFFFF	#000000	##FFFFFF
##180F6D	1.00	15.81	1.33	15.81
#FFFFFF	15.81	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002770

Deuteranopia (green-blind)

#001E6B

Tritanopia (blue-blind)

#002D3F

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #180f6d;
/* rgb */ color: rgb(24, 15, 109);
/* oklch */ color: oklch(27.0% 0.150 274.0);

Tailwind

colors: {
  custom: {
    50: '#665198',
    500: '#180f6d',
    950: '#000000',
  },
}

SCSS

$custom: #180f6d;
$custom-light: #665198;
$custom-dark: #000000;

JSON

{
  "hex": "#180f6d",
  "rgb": {
    "r": 24,
    "g": 15,
    "b": 109
  },
  "hsl": {
    "h": 245.745,
    "s": 75.806,
    "l": 24.314
  },
  "oklch": {
    "l": 0.27013,
    "c": 0.14952,
    "h": 274
  },
  "luminance": 0.0164
}

Semantic roles & 50–950 ramp

primary

#180F6D

secondary

#9AA533

accent

#F235E0

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07020E

muted

#7A787E

Preview Lab

Preview with #180F6D

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

Preview Lab → · Contrast checker → · Palette generator →