#183572#183572

#183572 is a dark, moderate blue. Relative luminance 0.040; OKLCH L 34.5% C 0.111 H 262.8°. Best body text is #FFFFFF at 11.73:1 contrast (WCAG AA passes).

Color values

HEX	#183572
RGB	rgb(24, 53, 114)
HSL	hsl(221, 65%, 27%)
HSV	hsv(221, 79%, 45%)
CMYK	cmyk(78.9%, 53.5%, 0%, 55.3%)
CIE-LAB	lab(23.52, 12.99, -38.34)
CIE-LCH	lch(23.52, 40.48, 288.71°)
OKLab	oklab(34.52% -0.0139 -0.1103)
OKLCH	oklch(34.52% 0.111 262.8)
XYZ	xyz(4.6860, 3.9548, 16.4327)
Luminance	0.0396 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183572 #725518

analogous

#186272 #183572 #281872

triadic

#183572 #721835 #357218

tetradic

#183572 #721862 #725518 #187228

square

#183572 #721862 #725518 #187228

split-complementary

#183572 #722818 #627218

monochromatic

#050C19 #0D1D3F #183572 #234DA5 #3165D4

Accessibility & contrast

On white

11.73

#183572 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#183572 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183572

11.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183572	#FFFFFF	#000000	##FFFFFF
##183572	1.00	11.73	1.79	11.73
#FFFFFF	11.73	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E3C74

Deuteranopia (green-blind)

#003471

Tritanopia (blue-blind)

#00444E

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #183572;
/* rgb */ color: rgb(24, 53, 114);
/* oklch */ color: oklch(34.5% 0.111 262.8);

Tailwind

colors: {
  custom: {
    50: '#636b9b',
    500: '#183572',
    950: '#000000',
  },
}

SCSS

$custom: #183572;
$custom-light: #636b9b;
$custom-dark: #000000;

JSON

{
  "hex": "#183572",
  "rgb": {
    "r": 24,
    "g": 53,
    "b": 114
  },
  "hsl": {
    "h": 220.667,
    "s": 65.217,
    "l": 27.059
  },
  "oklch": {
    "l": 0.34517,
    "c": 0.11118,
    "h": 262.8
  },
  "luminance": 0.03955
}

Semantic roles & 50–950 ramp

primary

#183572

secondary

#A7863E

accent

#B240E8

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #183572

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

Preview Lab → · Contrast checker → · Palette generator →