#18353B#18353B

#18353B is a dark, muted cyan. Relative luminance 0.031; OKLCH L 30.9% C 0.036 H 212.7°. Best body text is #FFFFFF at 13.03:1 contrast (WCAG AA passes).

Color values

HEX	#18353B
RGB	rgb(24, 53, 59)
HSL	hsl(190, 42%, 16%)
HSV	hsv(190, 59%, 23%)
CMYK	cmyk(59.3%, 10.2%, 0%, 76.9%)
CIE-LAB	lab(20.27, -8.85, -7.12)
CIE-LCH	lch(20.27, 11.35, 218.82°)
OKLab	oklab(30.92% -0.0306 -0.0197)
OKLCH	oklch(30.92% 0.036 212.7)
XYZ	xyz(2.4389, 3.0560, 4.5982)
Luminance	0.0306 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18353B #3B1E18

analogous

#183B30 #18353B #18243B

triadic

#18353B #3B1835 #353B18

tetradic

#18353B #30183B #3B1E18 #243B18

square

#18353B #30183B #3B1E18 #243B18

split-complementary

#18353B #3B1824 #3B3018

monochromatic

#091416 #091416 #18353B #2A5C67 #3B8392

Accessibility & contrast

On white

13.03

#18353B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#18353B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18353B

13.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18353B	#FFFFFF	#000000	##FFFFFF
##18353B	1.00	13.03	1.61	13.03
#FFFFFF	13.03	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#30333B

Deuteranopia (green-blind)

#2B2F3B

Tritanopia (blue-blind)

#033837

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #18353b;
/* rgb */ color: rgb(24, 53, 59);
/* oklch */ color: oklch(30.9% 0.036 212.7);

Tailwind

colors: {
  custom: {
    50: '#586c70',
    500: '#18353b',
    950: '#000000',
  },
}

SCSS

$custom: #18353b;
$custom-light: #586c70;
$custom-dark: #000000;

JSON

{
  "hex": "#18353b",
  "rgb": {
    "r": 24,
    "g": 53,
    "b": 59
  },
  "hsl": {
    "h": 190.286,
    "s": 42.169,
    "l": 16.275
  },
  "oklch": {
    "l": 0.3092,
    "c": 0.03638,
    "h": 212.7
  },
  "luminance": 0.03056
}

Semantic roles & 50–950 ramp

primary

#18353B

secondary

#71463E

accent

#6B56D2

background

#F5F6F6

surface

#E9EBEC

border

#C5C6C7

text

#030707

muted

#787A7A

Preview Lab

Preview with #18353B

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

Preview Lab → · Contrast checker → · Palette generator →