#18428E#18428E

#18428E is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.8% C 0.135 H 261.1°. Best body text is #FFFFFF at 9.51:1 contrast (WCAG AA passes).

Color values

HEX	#18428E
RGB	rgb(24, 66, 142)
HSL	hsl(219, 71%, 33%)
HSV	hsv(219, 83%, 56%)
CMYK	cmyk(83.1%, 53.5%, 0%, 44.3%)
CIE-LAB	lab(29.52, 15.41, -46.19)
CIE-LCH	lch(29.52, 48.69, 288.45°)
OKLab	oklab(39.76% -0.0208 -0.1331)
OKLCH	oklch(39.76% 0.135 261.1)
XYZ	xyz(7.2056, 6.0427, 26.3725)
Luminance	0.0604 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18428E #8E6418

analogous

#187D8E #18428E #29188E

triadic

#18428E #8E1842 #428E18

tetradic

#18428E #8E187D #8E6418 #188E29

square

#18428E #8E187D #8E6418 #188E29

split-complementary

#18428E #8E2918 #7D8E18

monochromatic

#061125 #0F2A5A #18428E #215AC2 #417ADF

Accessibility & contrast

On white

9.51

#18428E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#18428E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18428E

9.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18428E	#FFFFFF	#000000	##FFFFFF
##18428E	1.00	9.51	2.21	9.51
#FFFFFF	9.51	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B4B91

Deuteranopia (green-blind)

#00408D

Tritanopia (blue-blind)

#005561

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #18428e;
/* rgb */ color: rgb(24, 66, 142);
/* oklch */ color: oklch(39.8% 0.135 261.1);

Tailwind

colors: {
  custom: {
    50: '#6a75b0',
    500: '#18428e',
    950: '#000000',
  },
}

SCSS

$custom: #18428e;
$custom-light: #6a75b0;
$custom-dark: #000000;

JSON

{
  "hex": "#18428e",
  "rgb": {
    "r": 24,
    "g": 66,
    "b": 142
  },
  "hsl": {
    "h": 218.644,
    "s": 71.084,
    "l": 32.549
  },
  "oklch": {
    "l": 0.39761,
    "c": 0.13475,
    "h": 261.1
  },
  "luminance": 0.06044
}

Semantic roles & 50–950 ramp

primary

#18428E

secondary

#C09342

accent

#AE3AEE

background

#F6F7FA

surface

#ECEDF5

border

#C7C8CF

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #18428E

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

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