#182F40#182F40

#182F40 is a dark, muted cyan. Relative luminance 0.026; OKLCH L 29.5% C 0.043 H 242.1°. Best body text is #FFFFFF at 13.82:1 contrast (WCAG AA passes).

Color values

HEX	#182F40
RGB	rgb(24, 47, 64)
HSL	hsl(206, 45%, 17%)
HSV	hsv(206, 63%, 25%)
CMYK	cmyk(62.5%, 26.6%, 0%, 74.9%)
CIE-LAB	lab(18.35, -3.07, -13.47)
CIE-LCH	lch(18.35, 13.81, 257.17°)
OKLab	oklab(29.47% -0.0199 -0.0377)
OKLCH	oklch(29.47% 0.043 242.1)
XYZ	xyz(2.3183, 2.5972, 5.2286)
Luminance	0.0260 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182F40 #402918

analogous

#18403D #182F40 #181B40

triadic

#182F40 #40182F #2F4018

tetradic

#182F40 #3D1840 #402918 #1B4018

square

#182F40 #3D1840 #402918 #1B4018

split-complementary

#182F40 #40181B #403D18

monochromatic

#081016 #081016 #182F40 #29506D #397099

Accessibility & contrast

On white

13.82

#182F40 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#182F40 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182F40

13.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182F40	#FFFFFF	#000000	##FFFFFF
##182F40	1.00	13.82	1.52	13.82
#FFFFFF	13.82	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#282F41

Deuteranopia (green-blind)

#222B40

Tritanopia (blue-blind)

#003335

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #182f40;
/* rgb */ color: rgb(24, 47, 64);
/* oklch */ color: oklch(29.5% 0.043 242.1);

Tailwind

colors: {
  custom: {
    50: '#596775',
    500: '#182f40',
    950: '#000000',
  },
}

SCSS

$custom: #182f40;
$custom-light: #596775;
$custom-dark: #000000;

JSON

{
  "hex": "#182f40",
  "rgb": {
    "r": 24,
    "g": 47,
    "b": 64
  },
  "hsl": {
    "h": 205.5,
    "s": 45.455,
    "l": 17.255
  },
  "oklch": {
    "l": 0.29472,
    "c": 0.04259,
    "h": 242.1
  },
  "luminance": 0.02597
}

Semantic roles & 50–950 ramp

primary

#182F40

secondary

#77563D

accent

#8A53D5

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#030608

muted

#787A7B

Preview Lab

Preview with #182F40

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

Preview Lab → · Contrast checker → · Palette generator →