#12347F#12347F

#12347F is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.2% C 0.133 H 263.0°. Best body text is #FFFFFF at 11.52:1 contrast (WCAG AA passes).

Color values

HEX	#12347F
RGB	rgb(18, 52, 127)
HSL	hsl(221, 75%, 28%)
HSV	hsv(221, 86%, 50%)
CMYK	cmyk(85.8%, 59.1%, 0%, 50.2%)
CIE-LAB	lab(24.05, 18.47, -45.74)
CIE-LCH	lch(24.05, 49.33, 291.98°)
OKLab	oklab(35.19% -0.0162 -0.1322)
OKLCH	oklch(35.19% 0.133 263)
XYZ	xyz(5.3068, 4.1162, 20.5894)
Luminance	0.0412 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12347F #7F5D12

analogous

#126A7F #12347F #26127F

triadic

#12347F #7F1234 #347F12

tetradic

#12347F #7F126A #7F5D12 #127F26

square

#12347F #7F126A #7F5D12 #127F26

split-complementary

#12347F #7F2612 #6A7F12

monochromatic

#040B1B #0A1E49 #12347F #1A4AB5 #2B63E1

Accessibility & contrast

On white

11.52

#12347F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#12347F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12347F

11.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12347F	#FFFFFF	#000000	##FFFFFF
##12347F	1.00	11.52	1.82	11.52
#FFFFFF	11.52	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E82

Deuteranopia (green-blind)

#00347E

Tritanopia (blue-blind)

#004754

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #12347f;
/* rgb */ color: rgb(18, 52, 127);
/* oklch */ color: oklch(35.2% 0.133 263.0);

Tailwind

colors: {
  custom: {
    50: '#656aa5',
    500: '#12347f',
    950: '#000000',
  },
}

SCSS

$custom: #12347f;
$custom-light: #656aa5;
$custom-dark: #000000;

JSON

{
  "hex": "#12347f",
  "rgb": {
    "r": 18,
    "g": 52,
    "b": 127
  },
  "hsl": {
    "h": 221.284,
    "s": 75.172,
    "l": 28.431
  },
  "oklch": {
    "l": 0.35188,
    "c": 0.13317,
    "h": 263
  },
  "luminance": 0.04117
}

Semantic roles & 50–950 ramp

primary

#12347F

secondary

#B58E38

accent

#B736F2

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #12347F

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

Preview Lab → · Contrast checker → · Palette generator →