#18273A#18273A

#18273A is a dark, muted cyan. Relative luminance 0.020; OKLCH L 26.9% C 0.041 H 254.8°. Best body text is #FFFFFF at 15.11:1 contrast (WCAG AA passes).

Color values

HEX	#18273A
RGB	rgb(24, 39, 58)
HSL	hsl(214, 41%, 16%)
HSV	hsv(214, 59%, 23%)
CMYK	cmyk(58.6%, 32.8%, 0%, 77.3%)
CIE-LAB	lab(15.23, 0.28, -14.17)
CIE-LCH	lch(15.23, 14.17, 271.14°)
OKLab	oklab(26.91% -0.0108 -0.0397)
OKLCH	oklch(26.91% 0.041 254.8)
XYZ	xyz(1.8657, 1.9506, 4.2804)
Luminance	0.0195 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18273A #3A2B18

analogous

#18383A #18273A #1A183A

triadic

#18273A #3A1827 #273A18

tetradic

#18273A #3A1838 #3A2B18 #183A1A

square

#18273A #3A1838 #3A2B18 #183A1A

split-complementary

#18273A #3A1A18 #383A18

monochromatic

#090F16 #090F16 #18273A #2A4465 #3C6191

Accessibility & contrast

On white

15.11

#18273A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#18273A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18273A

15.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18273A	#FFFFFF	#000000	##FFFFFF
##18273A	1.00	15.11	1.39	15.11
#FFFFFF	15.11	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#20283B

Deuteranopia (green-blind)

#1B253A

Tritanopia (blue-blind)

#082B2E

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #18273a;
/* rgb */ color: rgb(24, 39, 58);
/* oklch */ color: oklch(26.9% 0.041 254.8);

Tailwind

colors: {
  custom: {
    50: '#576070',
    500: '#18273a',
    950: '#000000',
  },
}

SCSS

$custom: #18273a;
$custom-light: #576070;
$custom-dark: #000000;

JSON

{
  "hex": "#18273a",
  "rgb": {
    "r": 24,
    "g": 39,
    "b": 58
  },
  "hsl": {
    "h": 213.529,
    "s": 41.463,
    "l": 16.078
  },
  "oklch": {
    "l": 0.26907,
    "c": 0.04114,
    "h": 254.8
  },
  "luminance": 0.01951
}

Semantic roles & 50–950 ramp

primary

#18273A

secondary

#705A3E

accent

#9B57D1

background

#F5F5F6

surface

#E9E9EC

border

#C5C5C7

text

#030507

muted

#78797A

Preview Lab

Preview with #18273A

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

Preview Lab → · Contrast checker → · Palette generator →