#182D5E#182D5E

#182D5E is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.0% C 0.092 H 264.3°. Best body text is #FFFFFF at 13.33:1 contrast (WCAG AA passes).

Color values

HEX	#182D5E
RGB	rgb(24, 45, 94)
HSL	hsl(222, 59%, 23%)
HSV	hsv(222, 74%, 37%)
CMYK	cmyk(74.5%, 52.1%, 0%, 63.1%)
CIE-LAB	lab(19.55, 10.44, -31.76)
CIE-LCH	lch(19.55, 33.43, 288.20°)
OKLab	oklab(31.01% -0.0091 -0.0911)
OKLCH	oklch(31.01% 0.092 264.3)
XYZ	xyz(3.3347, 2.8788, 10.9674)
Luminance	0.0288 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182D5E #5E4918

analogous

#18505E #182D5E #26185E

triadic

#182D5E #5E182D #2D5E18

tetradic

#182D5E #5E1850 #5E4918 #185E26

square

#182D5E #5E1850 #5E4918 #185E26

split-complementary

#182D5E #5E2618 #505E18

monochromatic

#060C18 #0C162D #182D5E #24448F #315CC0

Accessibility & contrast

On white

13.33

#182D5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#182D5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182D5E

13.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182D5E	#FFFFFF	#000000	##FFFFFF
##182D5E	1.00	13.33	1.58	13.33
#FFFFFF	13.33	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#123360

Deuteranopia (green-blind)

#012C5D

Tritanopia (blue-blind)

#003941

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #182d5e;
/* rgb */ color: rgb(24, 45, 94);
/* oklch */ color: oklch(31.0% 0.092 264.3);

Tailwind

colors: {
  custom: {
    50: '#5f658c',
    500: '#182d5e',
    950: '#000000',
  },
}

SCSS

$custom: #182d5e;
$custom-light: #5f658c;
$custom-dark: #000000;

JSON

{
  "hex": "#182d5e",
  "rgb": {
    "r": 24,
    "g": 45,
    "b": 94
  },
  "hsl": {
    "h": 222,
    "s": 59.322,
    "l": 23.137
  },
  "oklch": {
    "l": 0.3101,
    "c": 0.09156,
    "h": 264.3
  },
  "luminance": 0.02879
}

Semantic roles & 50–950 ramp

primary

#182D5E

secondary

#947A3D

accent

#B345E3

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05050C

muted

#797A7D

Preview Lab

Preview with #182D5E

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

Preview Lab → · Contrast checker → · Palette generator →