#18556E#18556E

#18556E is a dark, moderate cyan. Relative luminance 0.078; OKLCH L 42.3% C 0.073 H 229.8°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#18556E
RGB	rgb(24, 85, 110)
HSL	hsl(197, 64%, 26%)
HSV	hsv(197, 78%, 43%)
CMYK	cmyk(78.2%, 22.7%, 0%, 56.9%)
CIE-LAB	lab(33.60, -9.96, -19.85)
CIE-LCH	lch(33.60, 22.21, 243.36°)
OKLab	oklab(42.33% -0.0471 -0.0558)
OKLCH	oklch(42.33% 0.073 229.8)
XYZ	xyz(6.4385, 7.8162, 15.9182)
Luminance	0.0782 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18556E #6E3118

analogous

#186E5C #18556E #182A6E

triadic

#18556E #6E1855 #556E18

tetradic

#18556E #5C186E #6E3118 #2A6E18

square

#18556E #5C186E #6E3118 #2A6E18

split-complementary

#18556E #6E182A #6E5C18

monochromatic

#051319 #0D2E3C #18556E #237CA0 #2FA2D2

Accessibility & contrast

On white

8.19

#18556E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#18556E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18556E

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18556E	#FFFFFF	#000000	##FFFFFF
##18556E	1.00	8.19	2.56	8.19
#FFFFFF	8.19	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#48546F

Deuteranopia (green-blind)

#3D4B6E

Tritanopia (blue-blind)

#005C5D

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #18556e;
/* rgb */ color: rgb(24, 85, 110);
/* oklch */ color: oklch(42.3% 0.073 229.8);

Tailwind

colors: {
  custom: {
    50: '#638497',
    500: '#18556e',
    950: '#000000',
  },
}

SCSS

$custom: #18556e;
$custom-light: #638497;
$custom-dark: #000000;

JSON

{
  "hex": "#18556e",
  "rgb": {
    "r": 24,
    "g": 85,
    "b": 110
  },
  "hsl": {
    "h": 197.442,
    "s": 64.179,
    "l": 26.275
  },
  "oklch": {
    "l": 0.42328,
    "c": 0.07298,
    "h": 229.8
  },
  "luminance": 0.07817
}

Semantic roles & 50–950 ramp

primary

#18556E

secondary

#A45C3E

accent

#7141E7

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #18556E

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

Preview Lab → · Contrast checker → · Palette generator →