#12187F#12187F

#12187F is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.1% C 0.166 H 268.8°. Best body text is #FFFFFF at 14.36:1 contrast (WCAG AA passes).

Color values

HEX	#12187F
RGB	rgb(18, 24, 127)
HSL	hsl(237, 75%, 28%)
HSV	hsv(237, 86%, 50%)
CMYK	cmyk(85.8%, 81.1%, 0%, 50.2%)
CIE-LAB	lab(17.05, 37.13, -57.24)
CIE-LCH	lch(17.05, 68.23, 302.97°)
OKLab	oklab(30.08% -0.0035 -0.1658)
OKLCH	oklch(30.08% 0.166 268.8)
XYZ	xyz(4.4055, 2.3136, 20.2889)
Luminance	0.0231 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12187F #7F7912

analogous

#124E7F #12187F #42127F

triadic

#12187F #7F1218 #187F12

tetradic

#12187F #7F124E #7F7912 #127F42

square

#12187F #7F124E #7F7912 #127F42

split-complementary

#12187F #7F4212 #4E7F12

monochromatic

#04051B #0A0E49 #12187F #1A22B5 #2B35E1

Accessibility & contrast

On white

14.36

#12187F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#12187F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12187F

14.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12187F	#FFFFFF	#000000	##FFFFFF
##12187F	1.00	14.36	1.46	14.36
#FFFFFF	14.36	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F82

Deuteranopia (green-blind)

#00247D

Tritanopia (blue-blind)

#00384B

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #12187f;
/* rgb */ color: rgb(18, 24, 127);
/* oklch */ color: oklch(30.1% 0.166 268.8);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#12187f",
  "rgb": {
    "r": 18,
    "g": 24,
    "b": 127
  },
  "hsl": {
    "h": 236.697,
    "s": 75.172,
    "l": 28.431
  },
  "oklch": {
    "l": 0.30077,
    "c": 0.16589,
    "h": 268.8
  },
  "luminance": 0.02314
}

Semantic roles & 50–950 ramp

primary

#12187F

secondary

#B5AE38

accent

#E736F2

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07030F

muted

#7A787F

Preview Lab

Preview with #12187F

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

Preview Lab → · Contrast checker → · Palette generator →