#12428E#12428E

#12428E is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.6% C 0.136 H 259.7°. Best body text is #FFFFFF at 9.56:1 contrast (WCAG AA passes).

Color values

HEX	#12428E
RGB	rgb(18, 66, 142)
HSL	hsl(217, 78%, 31%)
HSV	hsv(217, 87%, 56%)
CMYK	cmyk(87.3%, 53.5%, 0%, 44.3%)
CIE-LAB	lab(29.35, 14.87, -46.46)
CIE-LCH	lch(29.35, 48.78, 287.75°)
OKLab	oklab(39.59% -0.0243 -0.134)
OKLCH	oklch(39.59% 0.136 259.7)
XYZ	xyz(7.0784, 5.9771, 26.3666)
Luminance	0.0598 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12428E #8E5E12

analogous

#12808E #12428E #20128E

triadic

#12428E #8E1242 #428E12

tetradic

#12428E #8E1280 #8E5E12 #128E20

square

#12428E #8E1280 #8E5E12 #128E20

split-complementary

#12428E #8E2012 #808E12

monochromatic

#041021 #0B2958 #12428E #195BC4 #3579E5

Accessibility & contrast

On white

9.56

#12428E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#12428E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12428E

9.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12428E	#FFFFFF	#000000	##FFFFFF
##12428E	1.00	9.56	2.20	9.56
#FFFFFF	9.56	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#094B91

Deuteranopia (green-blind)

#00408D

Tritanopia (blue-blind)

#005561

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #12428e;
/* rgb */ color: rgb(18, 66, 142);
/* oklch */ color: oklch(39.6% 0.136 259.7);

Tailwind

colors: {
  custom: {
    50: '#6975b0',
    500: '#12428e',
    950: '#000000',
  },
}

SCSS

$custom: #12428e;
$custom-light: #6975b0;
$custom-dark: #000000;

JSON

{
  "hex": "#12428e",
  "rgb": {
    "r": 18,
    "g": 66,
    "b": 142
  },
  "hsl": {
    "h": 216.774,
    "s": 77.5,
    "l": 31.373
  },
  "oklch": {
    "l": 0.39588,
    "c": 0.13619,
    "h": 259.7
  },
  "luminance": 0.05978
}

Semantic roles & 50–950 ramp

primary

#12428E

secondary

#C28D3A

accent

#AA34F4

background

#F6F7FA

surface

#ECEDF5

border

#C7C8CF

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #12428E

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

Preview Lab → · Contrast checker → · Palette generator →