#12347E#12347E

#12347E is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.1% C 0.132 H 262.9°. Best body text is #FFFFFF at 11.55:1 contrast (WCAG AA passes).

Color values

HEX	#12347E
RGB	rgb(18, 52, 126)
HSL	hsl(221, 75%, 28%)
HSV	hsv(221, 86%, 49%)
CMYK	cmyk(85.7%, 58.7%, 0%, 50.6%)
CIE-LAB	lab(23.97, 18.05, -45.25)
CIE-LCH	lch(23.97, 48.71, 291.75°)
OKLab	oklab(35.1% -0.0163 -0.1307)
OKLCH	oklch(35.1% 0.132 262.9)
XYZ	xyz(5.2420, 4.0903, 20.2478)
Luminance	0.0409 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12347E #7E5C12

analogous

#126A7E #12347E #26127E

triadic

#12347E #7E1234 #347E12

tetradic

#12347E #7E126A #7E5C12 #127E26

square

#12347E #7E126A #7E5C12 #127E26

split-complementary

#12347E #7E2612 #6A7E12

monochromatic

#040B1B #0A1E48 #12347E #1A4AB4 #2A63E1

Accessibility & contrast

On white

11.55

#12347E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#12347E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12347E

11.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12347E	#FFFFFF	#000000	##FFFFFF
##12347E	1.00	11.55	1.82	11.55
#FFFFFF	11.55	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E81

Deuteranopia (green-blind)

#00347D

Tritanopia (blue-blind)

#004753

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #12347e;
/* rgb */ color: rgb(18, 52, 126);
/* oklch */ color: oklch(35.1% 0.132 262.9);

Tailwind

colors: {
  custom: {
    50: '#656aa4',
    500: '#12347e',
    950: '#000000',
  },
}

SCSS

$custom: #12347e;
$custom-light: #656aa4;
$custom-dark: #000000;

JSON

{
  "hex": "#12347e",
  "rgb": {
    "r": 18,
    "g": 52,
    "b": 126
  },
  "hsl": {
    "h": 221.111,
    "s": 75,
    "l": 28.235
  },
  "oklch": {
    "l": 0.35098,
    "c": 0.13174,
    "h": 262.9
  },
  "luminance": 0.04091
}

Semantic roles & 50–950 ramp

primary

#12347E

secondary

#B48D38

accent

#B736F2

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #12347E

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

Preview Lab → · Contrast checker → · Palette generator →