#183173#183173

#183173 is a dark, moderate blue. Relative luminance 0.036; OKLCH L 33.7% C 0.118 H 265.0°. Best body text is #FFFFFF at 12.17:1 contrast (WCAG AA passes).

Color values

HEX	#183173
RGB	rgb(24, 49, 115)
HSL	hsl(224, 65%, 27%)
HSV	hsv(224, 79%, 45%)
CMYK	cmyk(79.1%, 57.4%, 0%, 54.9%)
CIE-LAB	lab(22.40, 16.27, -40.80)
CIE-LCH	lch(22.40, 43.92, 291.74°)
OKLab	oklab(33.69% -0.0104 -0.1176)
OKLCH	oklch(33.69% 0.118 265)
XYZ	xyz(4.5684, 3.6281, 16.6759)
Luminance	0.0363 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183173 #735A18

analogous

#185F73 #183173 #2C1873

triadic

#183173 #731831 #317318

tetradic

#183173 #73185F #735A18 #18732C

square

#183173 #73185F #735A18 #18732C

split-complementary

#183173 #732C18 #5F7318

monochromatic

#050B19 #0D1B40 #183173 #2347A6 #315ED4

Accessibility & contrast

On white

12.17

#183173 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#183173 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183173

12.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183173	#FFFFFF	#000000	##FFFFFF
##183173	1.00	12.17	1.73	12.17
#FFFFFF	12.17	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A75

Deuteranopia (green-blind)

#003272

Tritanopia (blue-blind)

#00414D

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #183173;
/* rgb */ color: rgb(24, 49, 115);
/* oklch */ color: oklch(33.7% 0.118 265.0);

Tailwind

colors: {
  custom: {
    50: '#64689c',
    500: '#183173',
    950: '#000000',
  },
}

SCSS

$custom: #183173;
$custom-light: #64689c;
$custom-dark: #000000;

JSON

{
  "hex": "#183173",
  "rgb": {
    "r": 24,
    "g": 49,
    "b": 115
  },
  "hsl": {
    "h": 223.516,
    "s": 65.468,
    "l": 27.255
  },
  "oklch": {
    "l": 0.33693,
    "c": 0.11806,
    "h": 265
  },
  "luminance": 0.03629
}

Semantic roles & 50–950 ramp

primary

#183173

secondary

#A88B3F

accent

#BA3FE8

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #183173

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

Preview Lab → · Contrast checker → · Palette generator →