#12347D#12347D

#12347D is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.0% C 0.130 H 262.8°. Best body text is #FFFFFF at 11.58:1 contrast (WCAG AA passes).

Color values

HEX	#12347D
RGB	rgb(18, 52, 125)
HSL	hsl(221, 75%, 28%)
HSV	hsv(221, 86%, 49%)
CMYK	cmyk(85.6%, 58.4%, 0%, 51%)
CIE-LAB	lab(23.88, 17.63, -44.75)
CIE-LCH	lch(23.88, 48.10, 291.50°)
OKLab	oklab(35.01% -0.0164 -0.1293)
OKLCH	oklch(35.01% 0.13 262.8)
XYZ	xyz(5.1778, 4.0646, 19.9097)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12347D #7D5B12

analogous

#12697D #12347D #26127D

triadic

#12347D #7D1234 #347D12

tetradic

#12347D #7D1269 #7D5B12 #127D26

square

#12347D #7D1269 #7D5B12 #127D26

split-complementary

#12347D #7D2612 #697D12

monochromatic

#040B1B #0A1E48 #12347D #1A4AB2 #2963E0

Accessibility & contrast

On white

11.58

#12347D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#12347D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12347D

11.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12347D	#FFFFFF	#000000	##FFFFFF
##12347D	1.00	11.58	1.81	11.58
#FFFFFF	11.58	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E80

Deuteranopia (green-blind)

#00347C

Tritanopia (blue-blind)

#004653

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #12347d;
/* rgb */ color: rgb(18, 52, 125);
/* oklch */ color: oklch(35.0% 0.130 262.8);

Tailwind

colors: {
  custom: {
    50: '#656aa3',
    500: '#12347d',
    950: '#000000',
  },
}

SCSS

$custom: #12347d;
$custom-light: #656aa3;
$custom-dark: #000000;

JSON

{
  "hex": "#12347d",
  "rgb": {
    "r": 18,
    "g": 52,
    "b": 125
  },
  "hsl": {
    "h": 220.935,
    "s": 74.825,
    "l": 28.039
  },
  "oklch": {
    "l": 0.35008,
    "c": 0.13031,
    "h": 262.8
  },
  "luminance": 0.04065
}

Semantic roles & 50–950 ramp

primary

#12347D

secondary

#B38C38

accent

#B636F1

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #12347D

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

Preview Lab → · Contrast checker → · Palette generator →