#18657D#18657D

#18657D is a mid, moderate cyan. Relative luminance 0.110; OKLCH L 47.3% C 0.080 H 223.9°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#18657D
RGB	rgb(24, 101, 125)
HSL	hsl(194, 68%, 29%)
HSV	hsv(194, 81%, 49%)
CMYK	cmyk(80.8%, 19.2%, 0%, 51%)
CIE-LAB	lab(39.55, -13.84, -19.89)
CIE-LCH	lch(39.55, 24.22, 235.17°)
OKLab	oklab(47.31% -0.0579 -0.0557)
OKLCH	oklch(47.31% 0.08 223.9)
XYZ	xyz(8.7305, 10.9812, 21.0575)
Luminance	0.1098 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18657D #7D3018

analogous

#187D63 #18657D #18337D

triadic

#18657D #7D1865 #657D18

tetradic

#18657D #63187D #7D3018 #337D18

square

#18657D #63187D #7D3018 #337D18

split-complementary

#18657D #7D1833 #7D6318

monochromatic

#05151A #0E3C4A #18657D #228EB0 #37B2D9

Accessibility & contrast

On white

6.57

#18657D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#18657D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #18657D

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18657D	#FFFFFF	#000000	##FFFFFF
##18657D	1.00	6.57	3.20	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57637E

Deuteranopia (green-blind)

#4A597D

Tritanopia (blue-blind)

#006C6D

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #18657d;
/* rgb */ color: rgb(24, 101, 125);
/* oklch */ color: oklch(47.3% 0.080 223.9);

Tailwind

colors: {
  custom: {
    50: '#6791a2',
    500: '#18657d',
    950: '#000000',
  },
}

SCSS

$custom: #18657d;
$custom-light: #6791a2;
$custom-dark: #000000;

JSON

{
  "hex": "#18657d",
  "rgb": {
    "r": 24,
    "g": 101,
    "b": 125
  },
  "hsl": {
    "h": 194.257,
    "s": 67.785,
    "l": 29.216
  },
  "oklch": {
    "l": 0.47313,
    "c": 0.08039,
    "h": 223.9
  },
  "luminance": 0.10982
}

Semantic roles & 50–950 ramp

primary

#18657D

secondary

#B25A3F

accent

#663DEB

background

#F6F8FA

surface

#EBF0F3

border

#C6CBCD

text

#070C0F

muted

#7A7D7F

Preview Lab

Preview with #18657D

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

Preview Lab → · Contrast checker → · Palette generator →