#182B4E#182B4E

#182B4E is a dark, moderate blue. Relative luminance 0.025; OKLCH L 29.3% C 0.069 H 261.6°. Best body text is #FFFFFF at 14.05:1 contrast (WCAG AA passes).

Color values

HEX	#182B4E
RGB	rgb(24, 43, 78)
HSL	hsl(219, 53%, 20%)
HSV	hsv(219, 69%, 31%)
CMYK	cmyk(69.2%, 44.9%, 0%, 69.4%)
CIE-LAB	lab(17.79, 5.30, -23.89)
CIE-LCH	lch(17.79, 24.47, 282.50°)
OKLab	oklab(29.3% -0.01 -0.068)
OKLCH	oklch(29.3% 0.069 261.6)
XYZ	xyz(2.6152, 2.4718, 7.5455)
Luminance	0.0247 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182B4E #4E3B18

analogous

#18464E #182B4E #20184E

triadic

#182B4E #4E182B #2B4E18

tetradic

#182B4E #4E1846 #4E3B18 #184E20

square

#182B4E #4E1846 #4E3B18 #184E20

split-complementary

#182B4E #4E2018 #464E18

monochromatic

#070D17 #0A111F #182B4E #26457D #355FAC

Accessibility & contrast

On white

14.05

#182B4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#182B4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182B4E

14.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182B4E	#FFFFFF	#000000	##FFFFFF
##182B4E	1.00	14.05	1.49	14.05
#FFFFFF	14.05	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B2E4F

Deuteranopia (green-blind)

#14294D

Tritanopia (blue-blind)

#003338

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #182b4e;
/* rgb */ color: rgb(24, 43, 78);
/* oklch */ color: oklch(29.3% 0.069 261.6);

Tailwind

colors: {
  custom: {
    50: '#5b6380',
    500: '#182b4e',
    950: '#000000',
  },
}

SCSS

$custom: #182b4e;
$custom-light: #5b6380;
$custom-dark: #000000;

JSON

{
  "hex": "#182b4e",
  "rgb": {
    "r": 24,
    "g": 43,
    "b": 78
  },
  "hsl": {
    "h": 218.889,
    "s": 52.941,
    "l": 20
  },
  "oklch": {
    "l": 0.29297,
    "c": 0.06874,
    "h": 261.6
  },
  "luminance": 0.02472
}

Semantic roles & 50–950 ramp

primary

#182B4E

secondary

#856C3D

accent

#A94BDC

background

#F5F5F7

surface

#E9EAEE

border

#C5C6C9

text

#04050A

muted

#79797C

Preview Lab

Preview with #182B4E

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

Preview Lab → · Contrast checker → · Palette generator →