#18647B#18647B

#18647B is a mid, moderate cyan. Relative luminance 0.107; OKLCH L 47.0% C 0.079 H 223.2°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#18647B
RGB	rgb(24, 100, 123)
HSL	hsl(194, 67%, 29%)
HSV	hsv(194, 80%, 48%)
CMYK	cmyk(80.5%, 18.7%, 0%, 51.8%)
CIE-LAB	lab(39.13, -13.99, -19.31)
CIE-LCH	lch(39.13, 23.84, 234.07°)
OKLab	oklab(46.95% -0.0577 -0.0541)
OKLCH	oklch(46.95% 0.079 223.2)
XYZ	xyz(8.5075, 10.7376, 20.3592)
Luminance	0.1074 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18647B #7B2F18

analogous

#187B61 #18647B #18337B

triadic

#18647B #7B1864 #647B18

tetradic

#18647B #61187B #7B2F18 #337B18

square

#18647B #61187B #7B2F18 #337B18

split-complementary

#18647B #7B1833 #7B6118

monochromatic

#05151A #0E3A48 #18647B #228EAE #36B2D8

Accessibility & contrast

On white

6.67

#18647B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#18647B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #18647B

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18647B	#FFFFFF	#000000	##FFFFFF
##18647B	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57627C

Deuteranopia (green-blind)

#4A587B

Tritanopia (blue-blind)

#006B6B

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #18647b;
/* rgb */ color: rgb(24, 100, 123);
/* oklch */ color: oklch(47.0% 0.079 223.2);

Tailwind

colors: {
  custom: {
    50: '#6690a1',
    500: '#18647b',
    950: '#000000',
  },
}

SCSS

$custom: #18647b;
$custom-light: #6690a1;
$custom-dark: #000000;

JSON

{
  "hex": "#18647b",
  "rgb": {
    "r": 24,
    "g": 100,
    "b": 123
  },
  "hsl": {
    "h": 193.939,
    "s": 67.347,
    "l": 28.824
  },
  "oklch": {
    "l": 0.46953,
    "c": 0.0791,
    "h": 223.2
  },
  "luminance": 0.10739
}

Semantic roles & 50–950 ramp

primary

#18647B

secondary

#B0593F

accent

#663EEA

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#070C0F

muted

#7A7D7E

Preview Lab

Preview with #18647B

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

Preview Lab → · Contrast checker → · Palette generator →