#182D5D#182D5D

#182D5D is a dark, moderate blue. Relative luminance 0.029; OKLCH L 30.9% C 0.090 H 264.1°. Best body text is #FFFFFF at 13.36:1 contrast (WCAG AA passes).

Color values

HEX	#182D5D
RGB	rgb(24, 45, 93)
HSL	hsl(222, 59%, 23%)
HSV	hsv(222, 74%, 36%)
CMYK	cmyk(74.2%, 51.6%, 0%, 63.5%)
CIE-LAB	lab(19.48, 10.03, -31.22)
CIE-LCH	lch(19.48, 32.79, 287.81°)
OKLab	oklab(30.93% -0.0093 -0.0895)
OKLCH	oklch(30.93% 0.09 264.1)
XYZ	xyz(3.2902, 2.8609, 10.7326)
Luminance	0.0286 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182D5D #5D4818

analogous

#184F5D #182D5D #25185D

triadic

#182D5D #5D182D #2D5D18

tetradic

#182D5D #5D184F #5D4818 #185D25

square

#182D5D #5D184F #5D4818 #185D25

split-complementary

#182D5D #5D2518 #4F5D18

monochromatic

#060C18 #0B152C #182D5D #25458E #315CBE

Accessibility & contrast

On white

13.36

#182D5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#182D5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182D5D

13.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182D5D	#FFFFFF	#000000	##FFFFFF
##182D5D	1.00	13.36	1.57	13.36
#FFFFFF	13.36	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13335F

Deuteranopia (green-blind)

#032C5C

Tritanopia (blue-blind)

#003840

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #182d5d;
/* rgb */ color: rgb(24, 45, 93);
/* oklch */ color: oklch(30.9% 0.090 264.1);

Tailwind

colors: {
  custom: {
    50: '#5f658b',
    500: '#182d5d',
    950: '#000000',
  },
}

SCSS

$custom: #182d5d;
$custom-light: #5f658b;
$custom-dark: #000000;

JSON

{
  "hex": "#182d5d",
  "rgb": {
    "r": 24,
    "g": 45,
    "b": 93
  },
  "hsl": {
    "h": 221.739,
    "s": 58.974,
    "l": 22.941
  },
  "oklch": {
    "l": 0.3093,
    "c": 0.08998,
    "h": 264.1
  },
  "luminance": 0.02861
}

Semantic roles & 50–950 ramp

primary

#182D5D

secondary

#93793D

accent

#B346E2

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05050C

muted

#797A7D

Preview Lab

Preview with #182D5D

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

Preview Lab → · Contrast checker → · Palette generator →