#182D5F#182D5F

#182D5F is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.1% C 0.093 H 264.5°. Best body text is #FFFFFF at 13.30:1 contrast (WCAG AA passes).

Color values

HEX	#182D5F
RGB	rgb(24, 45, 95)
HSL	hsl(222, 60%, 23%)
HSV	hsv(222, 75%, 37%)
CMYK	cmyk(74.7%, 52.6%, 0%, 62.7%)
CIE-LAB	lab(19.63, 10.86, -32.30)
CIE-LCH	lch(19.63, 34.08, 288.59°)
OKLab	oklab(31.09% -0.009 -0.0927)
OKLCH	oklch(31.09% 0.093 264.5)
XYZ	xyz(3.3799, 2.8968, 11.2053)
Luminance	0.0290 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182D5F #5F4A18

analogous

#18505F #182D5F #26185F

triadic

#182D5F #5F182D #2D5F18

tetradic

#182D5F #5F1850 #5F4A18 #185F26

square

#182D5F #5F1850 #5F4A18 #185F26

split-complementary

#182D5F #5F2618 #505F18

monochromatic

#060C18 #0C162E #182D5F #244490 #315BC1

Accessibility & contrast

On white

13.30

#182D5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#182D5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182D5F

13.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182D5F	#FFFFFF	#000000	##FFFFFF
##182D5F	1.00	13.30	1.58	13.30
#FFFFFF	13.30	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#113361

Deuteranopia (green-blind)

#002C5E

Tritanopia (blue-blind)

#003941

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #182d5f;
/* rgb */ color: rgb(24, 45, 95);
/* oklch */ color: oklch(31.1% 0.093 264.5);

Tailwind

colors: {
  custom: {
    50: '#5f658d',
    500: '#182d5f',
    950: '#000000',
  },
}

SCSS

$custom: #182d5f;
$custom-light: #5f658d;
$custom-dark: #000000;

JSON

{
  "hex": "#182d5f",
  "rgb": {
    "r": 24,
    "g": 45,
    "b": 95
  },
  "hsl": {
    "h": 222.254,
    "s": 59.664,
    "l": 23.333
  },
  "oklch": {
    "l": 0.31091,
    "c": 0.09311,
    "h": 264.5
  },
  "luminance": 0.02897
}

Semantic roles & 50–950 ramp

primary

#182D5F

secondary

#957B3D

accent

#B445E3

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05050C

muted

#797A7D

Preview Lab

Preview with #182D5F

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

Preview Lab → · Contrast checker → · Palette generator →