#182F5E#182F5E

#182F5E is a dark, moderate blue. Relative luminance 0.030; OKLCH L 31.5% C 0.089 H 262.8°. Best body text is #FFFFFF at 13.07:1 contrast (WCAG AA passes).

Color values

HEX	#182F5E
RGB	rgb(24, 47, 94)
HSL	hsl(220, 59%, 23%)
HSV	hsv(220, 74%, 37%)
CMYK	cmyk(74.5%, 50%, 0%, 63.1%)
CIE-LAB	lab(20.18, 8.99, -30.74)
CIE-LCH	lch(20.18, 32.03, 286.30°)
OKLab	oklab(31.49% -0.0112 -0.0881)
OKLCH	oklch(31.49% 0.089 262.8)
XYZ	xyz(3.4129, 3.0350, 10.9935)
Luminance	0.0303 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182F5E #5E4718

analogous

#18525E #182F5E #24185E

triadic

#182F5E #5E182F #2F5E18

tetradic

#182F5E #5E1852 #5E4718 #185E24

square

#182F5E #5E1852 #5E4718 #185E24

split-complementary

#182F5E #5E2418 #525E18

monochromatic

#060C18 #0C172D #182F5E #24478F #3160C0

Accessibility & contrast

On white

13.07

#182F5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#182F5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182F5E

13.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182F5E	#FFFFFF	#000000	##FFFFFF
##182F5E	1.00	13.07	1.61	13.07
#FFFFFF	13.07	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#173460

Deuteranopia (green-blind)

#082E5D

Tritanopia (blue-blind)

#003A42

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #182f5e;
/* rgb */ color: rgb(24, 47, 94);
/* oklch */ color: oklch(31.5% 0.089 262.8);

Tailwind

colors: {
  custom: {
    50: '#5f678c',
    500: '#182f5e',
    950: '#000000',
  },
}

SCSS

$custom: #182f5e;
$custom-light: #5f678c;
$custom-dark: #000000;

JSON

{
  "hex": "#182f5e",
  "rgb": {
    "r": 24,
    "g": 47,
    "b": 94
  },
  "hsl": {
    "h": 220.286,
    "s": 59.322,
    "l": 23.137
  },
  "oklch": {
    "l": 0.31494,
    "c": 0.08878,
    "h": 262.8
  },
  "luminance": 0.03035
}

Semantic roles & 50–950 ramp

primary

#182F5E

secondary

#94783D

accent

#AF45E3

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #182F5E

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

Preview Lab → · Contrast checker → · Palette generator →