#18576B#18576B

#18576B is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 42.7% C 0.070 H 223.5°. Best body text is #FFFFFF at 8.03:1 contrast (WCAG AA passes).

Color values

HEX	#18576B
RGB	rgb(24, 87, 107)
HSL	hsl(194, 63%, 26%)
HSV	hsv(194, 78%, 42%)
CMYK	cmyk(77.6%, 18.7%, 0%, 58%)
CIE-LAB	lab(34.13, -12.27, -17.15)
CIE-LCH	lch(34.13, 21.09, 234.42°)
OKLab	oklab(42.71% -0.0505 -0.048)
OKLCH	oklch(42.71% 0.07 223.5)
XYZ	xyz(6.4376, 8.0714, 15.1257)
Luminance	0.0807 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18576B #6B2C18

analogous

#186B55 #18576B #182D6B

triadic

#18576B #6B1857 #576B18

tetradic

#18576B #55186B #6B2C18 #2D6B18

square

#18576B #55186B #6B2C18 #2D6B18

split-complementary

#18576B #6B182D #6B5518

monochromatic

#061419 #0D2E39 #18576B #23809D #2EA8CF

Accessibility & contrast

On white

8.03

#18576B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#18576B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18576B

8.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18576B	#FFFFFF	#000000	##FFFFFF
##18576B	1.00	8.03	2.61	8.03
#FFFFFF	8.03	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C556C

Deuteranopia (green-blind)

#404D6B

Tritanopia (blue-blind)

#005D5D

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #18576b;
/* rgb */ color: rgb(24, 87, 107);
/* oklch */ color: oklch(42.7% 0.070 223.5);

Tailwind

colors: {
  custom: {
    50: '#638695',
    500: '#18576b',
    950: '#000000',
  },
}

SCSS

$custom: #18576b;
$custom-light: #638695;
$custom-dark: #000000;

JSON

{
  "hex": "#18576b",
  "rgb": {
    "r": 24,
    "g": 87,
    "b": 107
  },
  "hsl": {
    "h": 194.458,
    "s": 63.359,
    "l": 25.686
  },
  "oklch": {
    "l": 0.42711,
    "c": 0.06967,
    "h": 223.5
  },
  "luminance": 0.08072
}

Semantic roles & 50–950 ramp

primary

#18576B

secondary

#A1563E

accent

#6941E6

background

#F6F8F9

surface

#EBEFF1

border

#C6CACB

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #18576B

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

Preview Lab → · Contrast checker → · Palette generator →