#18677B#18677B

#18677B is a mid, moderate cyan. Relative luminance 0.113; OKLCH L 47.7% C 0.079 H 219.3°. Best body text is #FFFFFF at 6.43:1 contrast (WCAG AA passes).

Color values

HEX	#18677B
RGB	rgb(24, 103, 123)
HSL	hsl(192, 67%, 29%)
HSV	hsv(192, 80%, 48%)
CMYK	cmyk(80.5%, 16.3%, 0%, 51.8%)
CIE-LAB	lab(40.12, -15.70, -17.79)
CIE-LCH	lch(40.12, 23.72, 228.57°)
OKLab	oklab(47.75% -0.0608 -0.0497)
OKLCH	oklch(47.75% 0.079 219.3)
XYZ	xyz(8.8006, 11.3237, 20.4569)
Luminance	0.1133 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18677B #7B2C18

analogous

#187B5E #18677B #18367B

triadic

#18677B #7B1867 #677B18

tetradic

#18677B #5E187B #7B2C18 #367B18

square

#18677B #5E187B #7B2C18 #367B18

split-complementary

#18677B #7B1836 #7B5E18

monochromatic

#05151A #0E3C48 #18677B #2292AE #36B7D8

Accessibility & contrast

On white

6.43

#18677B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#18677B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #18677B

6.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18677B	#FFFFFF	#000000	##FFFFFF
##18677B	1.00	6.43	3.27	6.43
#FFFFFF	6.43	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B647C

Deuteranopia (green-blind)

#4D5A7B

Tritanopia (blue-blind)

#006E6D

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #18677b;
/* rgb */ color: rgb(24, 103, 123);
/* oklch */ color: oklch(47.7% 0.079 219.3);

Tailwind

colors: {
  custom: {
    50: '#6792a1',
    500: '#18677b',
    950: '#000000',
  },
}

SCSS

$custom: #18677b;
$custom-light: #6792a1;
$custom-dark: #000000;

JSON

{
  "hex": "#18677b",
  "rgb": {
    "r": 24,
    "g": 103,
    "b": 123
  },
  "hsl": {
    "h": 192.121,
    "s": 67.347,
    "l": 28.824
  },
  "oklch": {
    "l": 0.47745,
    "c": 0.07859,
    "h": 219.3
  },
  "luminance": 0.11325
}

Semantic roles & 50–950 ramp

primary

#18677B

secondary

#B0563F

accent

#603EEA

background

#F6F9F9

surface

#EBF1F2

border

#C6CBCC

text

#070D0F

muted

#7A7E7E

Preview Lab

Preview with #18677B

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

Preview Lab → · Contrast checker → · Palette generator →