#182138#182138

#182138 is a dark, muted blue. Relative luminance 0.016; OKLCH L 25.2% C 0.046 H 266.9°. Best body text is #FFFFFF at 15.99:1 contrast (WCAG AA passes).

Color values

HEX	#182138
RGB	rgb(24, 33, 56)
HSL	hsl(223, 40%, 16%)
HSV	hsv(223, 57%, 22%)
CMYK	cmyk(57.1%, 41.1%, 0%, 78%)
CIE-LAB	lab(13.03, 3.92, -16.20)
CIE-LCH	lch(13.03, 16.66, 283.61°)
OKLab	oklab(25.16% -0.0025 -0.0456)
OKLCH	oklch(25.16% 0.046 266.9)
XYZ	xyz(1.6341, 1.5673, 3.9570)
Luminance	0.0157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182138 #382F18

analogous

#183138 #182138 #1F1838

triadic

#182138 #381821 #213818

tetradic

#182138 #381831 #382F18 #18381F

square

#182138 #381831 #382F18 #18381F

split-complementary

#182138 #381F18 #313818

monochromatic

#090D15 #090D15 #182138 #2A3A63 #3D538E

Accessibility & contrast

On white

15.99

#182138 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#182138 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182138

15.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182138	#FFFFFF	#000000	##FFFFFF
##182138	1.00	15.99	1.31	15.99
#FFFFFF	15.99	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	15.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#182339

Deuteranopia (green-blind)

#152037

Tritanopia (blue-blind)

#0B2629

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #182138;
/* rgb */ color: rgb(24, 33, 56);
/* oklch */ color: oklch(25.2% 0.046 266.9);

Tailwind

colors: {
  custom: {
    50: '#575b6e',
    500: '#182138',
    950: '#000000',
  },
}

SCSS

$custom: #182138;
$custom-light: #575b6e;
$custom-dark: #000000;

JSON

{
  "hex": "#182138",
  "rgb": {
    "r": 24,
    "g": 33,
    "b": 56
  },
  "hsl": {
    "h": 223.125,
    "s": 40,
    "l": 15.686
  },
  "oklch": {
    "l": 0.25159,
    "c": 0.0457,
    "h": 266.9
  },
  "luminance": 0.01567
}

Semantic roles & 50–950 ramp

primary

#182138

secondary

#6E603E

accent

#AE58D0

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030407

muted

#78797A

Preview Lab

Preview with #182138

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

Preview Lab → · Contrast checker → · Palette generator →