#12428F#12428F

#12428F is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.7% C 0.138 H 259.9°. Best body text is #FFFFFF at 9.54:1 contrast (WCAG AA passes).

Color values

HEX	#12428F
RGB	rgb(18, 66, 143)
HSL	hsl(217, 78%, 32%)
HSV	hsv(217, 87%, 56%)
CMYK	cmyk(87.4%, 53.8%, 0%, 43.9%)
CIE-LAB	lab(29.43, 15.28, -46.95)
CIE-LCH	lch(29.43, 49.38, 288.03°)
OKLab	oklab(39.67% -0.0241 -0.1355)
OKLCH	oklch(39.67% 0.138 259.9)
XYZ	xyz(7.1538, 6.0073, 26.7638)
Luminance	0.0601 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#12428F #8F5F12

analogous

#12818F #12428F #21128F

triadic

#12428F #8F1242 #428F12

tetradic

#12428F #8F1281 #8F5F12 #128F21

square

#12428F #8F1281 #8F5F12 #128F21

split-complementary

#12428F #8F2112 #818F12

monochromatic

#041022 #0B2959 #12428F #195BC5 #3679E6

Accessibility & contrast

On white

9.54

#12428F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#12428F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #12428F

9.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##12428F	#FFFFFF	#000000	##FFFFFF
##12428F	1.00	9.54	2.20	9.54
#FFFFFF	9.54	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#074B92

Deuteranopia (green-blind)

#00408D

Tritanopia (blue-blind)

#005562

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #12428f;
/* rgb */ color: rgb(18, 66, 143);
/* oklch */ color: oklch(39.7% 0.138 259.9);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#12428f",
  "rgb": {
    "r": 18,
    "g": 66,
    "b": 143
  },
  "hsl": {
    "h": 216.96,
    "s": 77.64,
    "l": 31.569
  },
  "oklch": {
    "l": 0.3967,
    "c": 0.13759,
    "h": 259.9
  },
  "luminance": 0.06008
}

Semantic roles & 50–950 ramp

primary

#12428F

secondary

#C38E3A

accent

#AA34F4

background

#F6F7FA

surface

#ECEDF5

border

#C7C8CF

text

#070811

muted

#7A7B80

Preview Lab

Preview with #12428F

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

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