#18657B#18657B

#18657B is a mid, moderate cyan. Relative luminance 0.109; OKLCH L 47.2% C 0.079 H 221.9°. Best body text is #FFFFFF at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#18657B
RGB	rgb(24, 101, 123)
HSL	hsl(193, 67%, 29%)
HSV	hsv(193, 80%, 48%)
CMYK	cmyk(80.5%, 17.9%, 0%, 51.8%)
CIE-LAB	lab(39.46, -14.56, -18.80)
CIE-LCH	lch(39.46, 23.78, 232.24°)
OKLab	oklab(47.22% -0.0587 -0.0526)
OKLCH	oklch(47.22% 0.079 221.9)
XYZ	xyz(8.6040, 10.9306, 20.3914)
Luminance	0.1093 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18657B #7B2E18

analogous

#187B60 #18657B #18347B

triadic

#18657B #7B1865 #657B18

tetradic

#18657B #60187B #7B2E18 #347B18

square

#18657B #60187B #7B2E18 #347B18

split-complementary

#18657B #7B1834 #7B6018

monochromatic

#05151A #0E3B48 #18657B #228FAE #36B4D8

Accessibility & contrast

On white

6.59

#18657B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#18657B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #18657B

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18657B	#FFFFFF	#000000	##FFFFFF
##18657B	1.00	6.59	3.19	6.59
#FFFFFF	6.59	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58627C

Deuteranopia (green-blind)

#4B597B

Tritanopia (blue-blind)

#006C6C

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #18657b;
/* rgb */ color: rgb(24, 101, 123);
/* oklch */ color: oklch(47.2% 0.079 221.9);

Tailwind

colors: {
  custom: {
    50: '#6791a1',
    500: '#18657b',
    950: '#000000',
  },
}

SCSS

$custom: #18657b;
$custom-light: #6791a1;
$custom-dark: #000000;

JSON

{
  "hex": "#18657b",
  "rgb": {
    "r": 24,
    "g": 101,
    "b": 123
  },
  "hsl": {
    "h": 193.333,
    "s": 67.347,
    "l": 28.824
  },
  "oklch": {
    "l": 0.47217,
    "c": 0.07889,
    "h": 221.9
  },
  "luminance": 0.10932
}

Semantic roles & 50–950 ramp

primary

#18657B

secondary

#B0583F

accent

#643EEA

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#070C0F

muted

#7A7D7E

Preview Lab

Preview with #18657B

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

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