#12187E#12187E

#12187E is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.0% C 0.165 H 268.8°. Best body text is #FFFFFF at 14.41:1 contrast (WCAG AA passes).

Color values

HEX	#12187E
RGB	rgb(18, 24, 126)
HSL	hsl(237, 75%, 28%)
HSV	hsv(237, 86%, 49%)
CMYK	cmyk(85.7%, 81%, 0%, 50.6%)
CIE-LAB	lab(16.93, 36.78, -56.81)
CIE-LCH	lch(16.93, 67.68, 302.92°)
OKLab	oklab(29.95% -0.0033 -0.1646)
OKLCH	oklch(29.95% 0.165 268.8)
XYZ	xyz(4.3407, 2.2877, 19.9474)
Luminance	0.0229 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12187E #7E7812

analogous

#124E7E #12187E #42127E

triadic

#12187E #7E1218 #187E12

tetradic

#12187E #7E124E #7E7812 #127E42

square

#12187E #7E124E #7E7812 #127E42

split-complementary

#12187E #7E4212 #4E7E12

monochromatic

#04051B #0A0E48 #12187E #1A22B4 #2A34E1

Accessibility & contrast

On white

14.41

#12187E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#12187E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12187E

14.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12187E	#FFFFFF	#000000	##FFFFFF
##12187E	1.00	14.41	1.46	14.41
#FFFFFF	14.41	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F81

Deuteranopia (green-blind)

#00247C

Tritanopia (blue-blind)

#00374B

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #12187e;
/* rgb */ color: rgb(18, 24, 126);
/* oklch */ color: oklch(30.0% 0.165 268.8);

Tailwind

colors: {
  custom: {
    50: '#6857a5',
    500: '#12187e',
    950: '#000000',
  },
}

SCSS

$custom: #12187e;
$custom-light: #6857a5;
$custom-dark: #000000;

JSON

{
  "hex": "#12187e",
  "rgb": {
    "r": 18,
    "g": 24,
    "b": 126
  },
  "hsl": {
    "h": 236.667,
    "s": 75,
    "l": 28.235
  },
  "oklch": {
    "l": 0.29953,
    "c": 0.16463,
    "h": 268.8
  },
  "luminance": 0.02288
}

Semantic roles & 50–950 ramp

primary

#12187E

secondary

#B4AD38

accent

#E736F2

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #12187E

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

Preview Lab → · Contrast checker → · Palette generator →