#182F53#182F53

#182F53 is a dark, moderate blue. Relative luminance 0.029; OKLCH L 30.7% C 0.071 H 259.0°. Best body text is #FFFFFF at 13.37:1 contrast (WCAG AA passes).

Color values

HEX	#182F53
RGB	rgb(24, 47, 83)
HSL	hsl(217, 55%, 21%)
HSV	hsv(217, 71%, 33%)
CMYK	cmyk(71.1%, 43.4%, 0%, 67.5%)
CIE-LAB	lab(19.44, 4.45, -24.63)
CIE-LCH	lch(19.44, 25.03, 280.24°)
OKLab	oklab(30.68% -0.0136 -0.0701)
OKLCH	oklch(30.68% 0.071 259)
XYZ	xyz(2.9540, 2.8515, 8.5766)
Luminance	0.0285 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182F53 #533C18

analogous

#184C53 #182F53 #1E1853

triadic

#182F53 #53182F #2F5318

tetradic

#182F53 #53184C #533C18 #18531E

square

#182F53 #53184C #533C18 #18531E

split-complementary

#182F53 #531E18 #4C5318

monochromatic

#070D18 #0A1424 #182F53 #264A82 #3365B2

Accessibility & contrast

On white

13.37

#182F53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#182F53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182F53

13.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182F53	#FFFFFF	#000000	##FFFFFF
##182F53	1.00	13.37	1.57	13.37
#FFFFFF	13.37	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F3254

Deuteranopia (green-blind)

#162D52

Tritanopia (blue-blind)

#00373D

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #182f53;
/* rgb */ color: rgb(24, 47, 83);
/* oklch */ color: oklch(30.7% 0.071 259.0);

Tailwind

colors: {
  custom: {
    50: '#5c6783',
    500: '#182f53',
    950: '#000000',
  },
}

SCSS

$custom: #182f53;
$custom-light: #5c6783;
$custom-dark: #000000;

JSON

{
  "hex": "#182f53",
  "rgb": {
    "r": 24,
    "g": 47,
    "b": 83
  },
  "hsl": {
    "h": 216.61,
    "s": 55.14,
    "l": 20.98
  },
  "oklch": {
    "l": 0.30679,
    "c": 0.07142,
    "h": 259
  },
  "luminance": 0.02852
}

Semantic roles & 50–950 ramp

primary

#182F53

secondary

#8A6C3D

accent

#A449DE

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04060A

muted

#797A7C

Preview Lab

Preview with #182F53

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

Preview Lab → · Contrast checker → · Palette generator →