#182B4A#182B4A

#182B4A is a dark, moderate blue. Relative luminance 0.024; OKLCH L 29.0% C 0.062 H 259.7°. Best body text is #FFFFFF at 14.16:1 contrast (WCAG AA passes).

Color values

HEX	#182B4A
RGB	rgb(24, 43, 74)
HSL	hsl(217, 51%, 19%)
HSV	hsv(217, 68%, 29%)
CMYK	cmyk(67.6%, 41.9%, 0%, 71%)
CIE-LAB	lab(17.53, 3.68, -21.58)
CIE-LCH	lch(17.53, 21.89, 279.67°)
OKLab	oklab(29.02% -0.0111 -0.0612)
OKLCH	oklch(29.02% 0.062 259.7)
XYZ	xyz(2.4762, 2.4161, 6.8131)
Luminance	0.0242 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182B4A #4A3718

analogous

#18444A #182B4A #1E184A

triadic

#182B4A #4A182B #2B4A18

tetradic

#182B4A #4A1844 #4A3718 #184A1E

square

#182B4A #4A1844 #4A3718 #184A1E

split-complementary

#182B4A #4A1E18 #444A18

monochromatic

#070D17 #09101C #182B4A #274678 #3661A6

Accessibility & contrast

On white

14.16

#182B4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#182B4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182B4A

14.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182B4A	#FFFFFF	#000000	##FFFFFF
##182B4A	1.00	14.16	1.48	14.16
#FFFFFF	14.16	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E2E4B

Deuteranopia (green-blind)

#172949

Tritanopia (blue-blind)

#003237

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #182b4a;
/* rgb */ color: rgb(24, 43, 74);
/* oklch */ color: oklch(29.0% 0.062 259.7);

Tailwind

colors: {
  custom: {
    50: '#5a647c',
    500: '#182b4a',
    950: '#000000',
  },
}

SCSS

$custom: #182b4a;
$custom-light: #5a647c;
$custom-dark: #000000;

JSON

{
  "hex": "#182b4a",
  "rgb": {
    "r": 24,
    "g": 43,
    "b": 74
  },
  "hsl": {
    "h": 217.2,
    "s": 51.02,
    "l": 19.216
  },
  "oklch": {
    "l": 0.29015,
    "c": 0.06224,
    "h": 259.7
  },
  "luminance": 0.02416
}

Semantic roles & 50–950 ramp

primary

#182B4A

secondary

#81673D

accent

#A54DDA

background

#F5F5F7

surface

#E9EAEE

border

#C5C6C9

text

#040509

muted

#79797B

Preview Lab

Preview with #182B4A

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

Preview Lab → · Contrast checker → · Palette generator →