#182D3D#182D3D

#182D3D is a dark, muted cyan. Relative luminance 0.024; OKLCH L 28.7% C 0.040 H 242.7°. Best body text is #FFFFFF at 14.17:1 contrast (WCAG AA passes).

Color values

HEX	#182D3D
RGB	rgb(24, 45, 61)
HSL	hsl(206, 44%, 17%)
HSV	hsv(206, 61%, 24%)
CMYK	cmyk(60.7%, 26.2%, 0%, 76.1%)
CIE-LAB	lab(17.50, -2.82, -12.73)
CIE-LCH	lch(17.50, 13.04, 257.52°)
OKLab	oklab(28.74% -0.0183 -0.0355)
OKLCH	oklch(28.74% 0.04 242.7)
XYZ	xyz(2.1571, 2.4077, 4.7650)
Luminance	0.0241 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182D3D #3D2818

analogous

#183D3B #182D3D #181B3D

triadic

#182D3D #3D182D #2D3D18

tetradic

#182D3D #3B183D #3D2818 #1B3D18

square

#182D3D #3B183D #3D2818 #1B3D18

split-complementary

#182D3D #3D181B #3D3B18

monochromatic

#091016 #091016 #182D3D #294D69 #3B6E95

Accessibility & contrast

On white

14.17

#182D3D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#182D3D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182D3D

14.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182D3D	#FFFFFF	#000000	##FFFFFF
##182D3D	1.00	14.17	1.48	14.17
#FFFFFF	14.17	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#262D3E

Deuteranopia (green-blind)

#21293D

Tritanopia (blue-blind)

#043132

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #182d3d;
/* rgb */ color: rgb(24, 45, 61);
/* oklch */ color: oklch(28.7% 0.040 242.7);

Tailwind

colors: {
  custom: {
    50: '#586572',
    500: '#182d3d',
    950: '#000000',
  },
}

SCSS

$custom: #182d3d;
$custom-light: #586572;
$custom-dark: #000000;

JSON

{
  "hex": "#182d3d",
  "rgb": {
    "r": 24,
    "g": 45,
    "b": 61
  },
  "hsl": {
    "h": 205.946,
    "s": 43.529,
    "l": 16.667
  },
  "oklch": {
    "l": 0.28745,
    "c": 0.03999,
    "h": 242.7
  },
  "luminance": 0.02408
}

Semantic roles & 50–950 ramp

primary

#182D3D

secondary

#73553D

accent

#8B55D3

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030508

muted

#787A7B

Preview Lab

Preview with #182D3D

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

Preview Lab → · Contrast checker → · Palette generator →