#12188F#12188F

#12188F is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.1% C 0.185 H 268.0°. Best body text is #FFFFFF at 13.52:1 contrast (WCAG AA passes).

Color values

HEX	#12188F
RGB	rgb(18, 24, 143)
HSL	hsl(237, 78%, 32%)
HSV	hsv(237, 87%, 56%)
CMYK	cmyk(87.4%, 83.2%, 0%, 43.9%)
CIE-LAB	lab(19.07, 42.59, -63.96)
CIE-LCH	lch(19.07, 76.84, 303.66°)
OKLab	oklab(32.07% -0.0064 -0.1853)
OKLCH	oklch(32.07% 0.185 268)
XYZ	xyz(5.5323, 2.7644, 26.2233)
Luminance	0.0277 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12188F #8F8912

analogous

#12578F #12188F #4B128F

triadic

#12188F #8F1218 #188F12

tetradic

#12188F #8F1257 #8F8912 #128F4B

square

#12188F #8F1257 #8F8912 #128F4B

split-complementary

#12188F #8F4B12 #578F12

monochromatic

#040622 #0B0F59 #12188F #1921C5 #363EE6

Accessibility & contrast

On white

13.52

#12188F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#12188F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12188F

13.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12188F	#FFFFFF	#000000	##FFFFFF
##12188F	1.00	13.52	1.55	13.52
#FFFFFF	13.52	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003592

Deuteranopia (green-blind)

#00288D

Tritanopia (blue-blind)

#003E55

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #12188f;
/* rgb */ color: rgb(18, 24, 143);
/* oklch */ color: oklch(32.1% 0.185 268.0);

Tailwind

colors: {
  custom: {
    50: '#6d58b1',
    500: '#12188f',
    950: '#000000',
  },
}

SCSS

$custom: #12188f;
$custom-light: #6d58b1;
$custom-dark: #000000;

JSON

{
  "hex": "#12188f",
  "rgb": {
    "r": 18,
    "g": 24,
    "b": 143
  },
  "hsl": {
    "h": 237.12,
    "s": 77.64,
    "l": 31.569
  },
  "oklch": {
    "l": 0.32071,
    "c": 0.18539,
    "h": 268
  },
  "luminance": 0.02765
}

Semantic roles & 50–950 ramp

primary

#12188F

secondary

#C3BD3A

accent

#EB34F4

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090311

muted

#7B7880

Preview Lab

Preview with #12188F

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

Preview Lab → · Contrast checker → · Palette generator →