#180F6F#180F6F

#180F6F is a dark, vivid blue. Relative luminance 0.017; OKLCH L 27.3% C 0.152 H 273.8°. Best body text is #FFFFFF at 15.71:1 contrast (WCAG AA passes).

Color values

HEX	#180F6F
RGB	rgb(24, 15, 111)
HSL	hsl(246, 76%, 25%)
HSV	hsv(246, 86%, 44%)
CMYK	cmyk(78.4%, 86.5%, 0%, 56.5%)
CIE-LAB	lab(13.73, 36.86, -52.45)
CIE-LCH	lch(13.73, 64.11, 305.10°)
OKLab	oklab(27.27% 0.01 -0.1517)
OKLCH	oklch(27.27% 0.152 273.8)
XYZ	xyz(3.4158, 1.6832, 15.1807)
Luminance	0.0168 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#180F6F #666F0F

analogous

#0F366F #180F6F #480F6F

triadic

#180F6F #6F180F #0F6F18

tetradic

#180F6F #6F0F36 #666F0F #0F6F48

square

#180F6F #6F0F36 #666F0F #0F6F48

split-complementary

#180F6F #6F480F #366F0F

monochromatic

#06041B #0C0839 #180F6F #2416A5 #2F1EDB

Accessibility & contrast

On white

15.71

#180F6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#180F6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #180F6F

15.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##180F6F	#FFFFFF	#000000	##FFFFFF
##180F6F	1.00	15.71	1.34	15.71
#FFFFFF	15.71	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002772

Deuteranopia (green-blind)

#001E6D

Tritanopia (blue-blind)

#002E40

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #180f6f;
/* rgb */ color: rgb(24, 15, 111);
/* oklch */ color: oklch(27.3% 0.152 273.8);

Tailwind

colors: {
  custom: {
    50: '#66519a',
    500: '#180f6f',
    950: '#000000',
  },
}

SCSS

$custom: #180f6f;
$custom-light: #66519a;
$custom-dark: #000000;

JSON

{
  "hex": "#180f6f",
  "rgb": {
    "r": 24,
    "g": 15,
    "b": 111
  },
  "hsl": {
    "h": 245.625,
    "s": 76.19,
    "l": 24.706
  },
  "oklch": {
    "l": 0.27267,
    "c": 0.15202,
    "h": 273.8
  },
  "luminance": 0.01684
}

Semantic roles & 50–950 ramp

primary

#180F6F

secondary

#9CA733

accent

#F335E1

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07020E

muted

#7A787E

Preview Lab

Preview with #180F6F

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

Preview Lab → · Contrast checker → · Palette generator →