#18428D#18428D

#18428D is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.7% C 0.133 H 261.0°. Best body text is #FFFFFF at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#18428D
RGB	rgb(24, 66, 141)
HSL	hsl(218, 71%, 32%)
HSV	hsv(218, 83%, 55%)
CMYK	cmyk(83%, 53.2%, 0%, 44.7%)
CIE-LAB	lab(29.44, 15.00, -45.69)
CIE-LCH	lch(29.44, 48.09, 288.17°)
OKLab	oklab(39.68% -0.0209 -0.1317)
OKLCH	oklch(39.68% 0.133 261)
XYZ	xyz(7.1309, 6.0128, 25.9789)
Luminance	0.0601 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18428D #8D6318

analogous

#187C8D #18428D #29188D

triadic

#18428D #8D1842 #428D18

tetradic

#18428D #8D187C #8D6318 #188D29

square

#18428D #8D187C #8D6318 #188D29

split-complementary

#18428D #8D2918 #7C8D18

monochromatic

#061124 #0F2A59 #18428D #215AC1 #4179DF

Accessibility & contrast

On white

9.53

#18428D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#18428D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18428D

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18428D	#FFFFFF	#000000	##FFFFFF
##18428D	1.00	9.53	2.20	9.53
#FFFFFF	9.53	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D4B90

Deuteranopia (green-blind)

#00408C

Tritanopia (blue-blind)

#005461

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #18428d;
/* rgb */ color: rgb(24, 66, 141);
/* oklch */ color: oklch(39.7% 0.133 261.0);

Tailwind

colors: {
  custom: {
    50: '#6a75af',
    500: '#18428d',
    950: '#000000',
  },
}

SCSS

$custom: #18428d;
$custom-light: #6a75af;
$custom-dark: #000000;

JSON

{
  "hex": "#18428d",
  "rgb": {
    "r": 24,
    "g": 66,
    "b": 141
  },
  "hsl": {
    "h": 218.462,
    "s": 70.909,
    "l": 32.353
  },
  "oklch": {
    "l": 0.3968,
    "c": 0.13332,
    "h": 261
  },
  "luminance": 0.06014
}

Semantic roles & 50–950 ramp

primary

#18428D

secondary

#BF9242

accent

#AD3AEE

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #18428D

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

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