#12307F#12307F

#12307F is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.3% C 0.138 H 264.3°. Best body text is #FFFFFF at 11.97:1 contrast (WCAG AA passes).

Color values

HEX	#12307F
RGB	rgb(18, 48, 127)
HSL	hsl(223, 75%, 28%)
HSV	hsv(223, 86%, 50%)
CMYK	cmyk(85.8%, 62.2%, 0%, 50.2%)
CIE-LAB	lab(22.91, 21.31, -47.60)
CIE-LCH	lch(22.91, 52.15, 294.12°)
OKLab	oklab(34.33% -0.0137 -0.1377)
OKLCH	oklch(34.33% 0.138 264.3)
XYZ	xyz(5.1358, 3.7742, 20.5324)
Luminance	0.0377 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12307F #7F6112

analogous

#12667F #12307F #2A127F

triadic

#12307F #7F1230 #307F12

tetradic

#12307F #7F1266 #7F6112 #127F2A

square

#12307F #7F1266 #7F6112 #127F2A

split-complementary

#12307F #7F2A12 #667F12

monochromatic

#040A1B #0A1C49 #12307F #1A44B5 #2B5DE1

Accessibility & contrast

On white

11.97

#12307F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#12307F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12307F

11.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12307F	#FFFFFF	#000000	##FFFFFF
##12307F	1.00	11.97	1.76	11.97
#FFFFFF	11.97	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C82

Deuteranopia (green-blind)

#00327D

Tritanopia (blue-blind)

#004452

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #12307f;
/* rgb */ color: rgb(18, 48, 127);
/* oklch */ color: oklch(34.3% 0.138 264.3);

Tailwind

colors: {
  custom: {
    50: '#6667a5',
    500: '#12307f',
    950: '#000000',
  },
}

SCSS

$custom: #12307f;
$custom-light: #6667a5;
$custom-dark: #000000;

JSON

{
  "hex": "#12307f",
  "rgb": {
    "r": 18,
    "g": 48,
    "b": 127
  },
  "hsl": {
    "h": 223.486,
    "s": 75.172,
    "l": 28.431
  },
  "oklch": {
    "l": 0.34331,
    "c": 0.1384,
    "h": 264.3
  },
  "luminance": 0.03775
}

Semantic roles & 50–950 ramp

primary

#12307F

secondary

#B59238

accent

#BE36F2

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #12307F

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

Preview Lab → · Contrast checker → · Palette generator →