#182F52#182F52

#182F52 is a dark, moderate blue. Relative luminance 0.028; OKLCH L 30.6% C 0.070 H 258.6°. Best body text is #FFFFFF at 13.40:1 contrast (WCAG AA passes).

Color values

HEX	#182F52
RGB	rgb(24, 47, 82)
HSL	hsl(216, 55%, 21%)
HSV	hsv(216, 71%, 32%)
CMYK	cmyk(70.7%, 42.7%, 0%, 67.8%)
CIE-LAB	lab(19.38, 4.04, -24.06)
CIE-LCH	lch(19.38, 24.40, 279.53°)
OKLab	oklab(30.61% -0.0138 -0.0684)
OKLCH	oklch(30.61% 0.07 258.6)
XYZ	xyz(2.9157, 2.8361, 8.3748)
Luminance	0.0284 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182F52 #523B18

analogous

#184C52 #182F52 #1E1852

triadic

#182F52 #52182F #2F5218

tetradic

#182F52 #52184C #523B18 #18521E

square

#182F52 #52184C #523B18 #18521E

split-complementary

#182F52 #521E18 #4C5218

monochromatic

#070E18 #0A1423 #182F52 #264A81 #3465B1

Accessibility & contrast

On white

13.40

#182F52 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#182F52 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182F52

13.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182F52	#FFFFFF	#000000	##FFFFFF
##182F52	1.00	13.40	1.57	13.40
#FFFFFF	13.40	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F3253

Deuteranopia (green-blind)

#172C51

Tritanopia (blue-blind)

#00373C

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #182f52;
/* rgb */ color: rgb(24, 47, 82);
/* oklch */ color: oklch(30.6% 0.070 258.6);

Tailwind

colors: {
  custom: {
    50: '#5c6783',
    500: '#182f52',
    950: '#000000',
  },
}

SCSS

$custom: #182f52;
$custom-light: #5c6783;
$custom-dark: #000000;

JSON

{
  "hex": "#182f52",
  "rgb": {
    "r": 24,
    "g": 47,
    "b": 82
  },
  "hsl": {
    "h": 216.207,
    "s": 54.717,
    "l": 20.784
  },
  "oklch": {
    "l": 0.30608,
    "c": 0.06984,
    "h": 258.6
  },
  "luminance": 0.02836
}

Semantic roles & 50–950 ramp

primary

#182F52

secondary

#896B3D

accent

#A34ADE

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04060A

muted

#797A7C

Preview Lab

Preview with #182F52

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

Preview Lab → · Contrast checker → · Palette generator →