#182B5D#182B5D

#182B5D is a dark, moderate blue. Relative luminance 0.027; OKLCH L 30.5% C 0.093 H 265.5°. Best body text is #FFFFFF at 13.62:1 contrast (WCAG AA passes).

Color values

HEX	#182B5D
RGB	rgb(24, 43, 93)
HSL	hsl(223, 59%, 23%)
HSV	hsv(223, 74%, 36%)
CMYK	cmyk(74.2%, 53.8%, 0%, 63.5%)
CIE-LAB	lab(18.85, 11.49, -32.23)
CIE-LCH	lch(18.85, 34.22, 289.63°)
OKLab	oklab(30.45% -0.0072 -0.0925)
OKLCH	oklch(30.45% 0.093 265.5)
XYZ	xyz(3.2157, 2.7119, 10.7078)
Luminance	0.0271 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182B5D #5D4A18

analogous

#184D5D #182B5D #27185D

triadic

#182B5D #5D182B #2B5D18

tetradic

#182B5D #5D184D #5D4A18 #185D27

square

#182B5D #5D184D #5D4A18 #185D27

split-complementary

#182B5D #5D2718 #4D5D18

monochromatic

#060B18 #0B152C #182B5D #25418E #3158BE

Accessibility & contrast

On white

13.62

#182B5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.54

#182B5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182B5D

13.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182B5D	#FFFFFF	#000000	##FFFFFF
##182B5D	1.00	13.62	1.54	13.62
#FFFFFF	13.62	1.00	21.00	1.00
#000000	1.54	21.00	1.00	21.00
##FFFFFF	13.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E315F

Deuteranopia (green-blind)

#002B5C

Tritanopia (blue-blind)

#00373F

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #182b5d;
/* rgb */ color: rgb(24, 43, 93);
/* oklch */ color: oklch(30.5% 0.093 265.5);

Tailwind

colors: {
  custom: {
    50: '#5f638b',
    500: '#182b5d',
    950: '#000000',
  },
}

SCSS

$custom: #182b5d;
$custom-light: #5f638b;
$custom-dark: #000000;

JSON

{
  "hex": "#182b5d",
  "rgb": {
    "r": 24,
    "g": 43,
    "b": 93
  },
  "hsl": {
    "h": 223.478,
    "s": 58.974,
    "l": 22.941
  },
  "oklch": {
    "l": 0.30452,
    "c": 0.09279,
    "h": 265.5
  },
  "luminance": 0.02712
}

Semantic roles & 50–950 ramp

primary

#182B5D

secondary

#937C3D

accent

#B746E2

background

#F5F5F8

surface

#EAEAF0

border

#C6C6CB

text

#05050C

muted

#79797D

Preview Lab

Preview with #182B5D

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

Preview Lab → · Contrast checker → · Palette generator →