#182F5C#182F5C

#182F5C is a dark, moderate blue. Relative luminance 0.030; OKLCH L 31.3% C 0.086 H 262.2°. Best body text is #FFFFFF at 13.13:1 contrast (WCAG AA passes).

Color values

HEX	#182F5C
RGB	rgb(24, 47, 92)
HSL	hsl(220, 59%, 23%)
HSV	hsv(220, 74%, 36%)
CMYK	cmyk(73.9%, 48.9%, 0%, 63.9%)
CIE-LAB	lab(20.04, 8.16, -29.65)
CIE-LCH	lch(20.04, 30.75, 285.39°)
OKLab	oklab(31.34% -0.0115 -0.0849)
OKLCH	oklch(31.34% 0.086 262.2)
XYZ	xyz(3.3243, 2.9996, 10.5269)
Luminance	0.0300 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182F5C #5C4518

analogous

#18515C #182F5C #23185C

triadic

#182F5C #5C182F #2F5C18

tetradic

#182F5C #5C1851 #5C4518 #185C23

square

#182F5C #5C1851 #5C4518 #185C23

split-complementary

#182F5C #5C2318 #515C18

monochromatic

#060C18 #0B162B #182F5C #25488D #3161BD

Accessibility & contrast

On white

13.13

#182F5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#182F5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182F5C

13.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182F5C	#FFFFFF	#000000	##FFFFFF
##182F5C	1.00	13.13	1.60	13.13
#FFFFFF	13.13	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#18345E

Deuteranopia (green-blind)

#0B2D5B

Tritanopia (blue-blind)

#003941

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #182f5c;
/* rgb */ color: rgb(24, 47, 92);
/* oklch */ color: oklch(31.3% 0.086 262.2);

Tailwind

colors: {
  custom: {
    50: '#5e678a',
    500: '#182f5c',
    950: '#000000',
  },
}

SCSS

$custom: #182f5c;
$custom-light: #5e678a;
$custom-dark: #000000;

JSON

{
  "hex": "#182f5c",
  "rgb": {
    "r": 24,
    "g": 47,
    "b": 92
  },
  "hsl": {
    "h": 219.706,
    "s": 58.621,
    "l": 22.745
  },
  "oklch": {
    "l": 0.3134,
    "c": 0.08564,
    "h": 262.2
  },
  "luminance": 0.03
}

Semantic roles & 50–950 ramp

primary

#182F5C

secondary

#93763D

accent

#AD46E2

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #182F5C

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

Preview Lab → · Contrast checker → · Palette generator →