#1B8CA8#1B8CA8

#1B8CA8 is a mid, moderate cyan. Relative luminance 0.218; OKLCH L 59.4% C 0.102 H 219.8°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#1B8CA8
RGB	rgb(27, 140, 168)
HSL	hsl(192, 72%, 38%)
HSV	hsv(192, 84%, 66%)
CMYK	cmyk(83.9%, 16.7%, 0%, 34.1%)
CIE-LAB	lab(53.83, -19.86, -23.27)
CIE-LCH	lch(53.83, 30.59, 229.53°)
OKLab	oklab(59.39% -0.0782 -0.0652)
OKLCH	oklch(59.39% 0.102 219.8)
XYZ	xyz(16.8949, 21.8142, 40.3583)
Luminance	0.2182 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B8CA8 #A8371B

analogous

#1BA87D #1B8CA8 #1B45A8

triadic

#1B8CA8 #A81B8C #8CA81B

tetradic

#1B8CA8 #7D1BA8 #A8371B #45A81B

square

#1B8CA8 #7D1BA8 #A8371B #45A81B

split-complementary

#1B8CA8 #A81B45 #A87D1B

monochromatic

#0A343F #136073 #1B8CA8 #24B7DC #59C9E4

Accessibility & contrast

On white

3.92

#1B8CA8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.36

#1B8CA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B8CA8

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B8CA8	#FFFFFF	#000000	##000000
##1B8CA8	1.00	3.92	5.36	5.36
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.36	21.00	1.00	1.00
##000000	5.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B88A9

Deuteranopia (green-blind)

#697BA8

Tritanopia (blue-blind)

#009595

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #1b8ca8;
/* rgb */ color: rgb(27, 140, 168);
/* oklch */ color: oklch(59.4% 0.102 219.8);

Tailwind

colors: {
  custom: {
    50: '#72adc2',
    500: '#1b8ca8',
    950: '#000000',
  },
}

SCSS

$custom: #1b8ca8;
$custom-light: #72adc2;
$custom-dark: #000000;

JSON

{
  "hex": "#1b8ca8",
  "rgb": {
    "r": 27,
    "g": 140,
    "b": 168
  },
  "hsl": {
    "h": 191.915,
    "s": 72.308,
    "l": 38.235
  },
  "oklch": {
    "l": 0.59389,
    "c": 0.10182,
    "h": 219.8
  },
  "luminance": 0.21816
}

Semantic roles & 50–950 ramp

primary

#1B8CA8

secondary

#C86D57

accent

#5D39EF

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#091012

muted

#7B7F81

Preview Lab

Preview with #1B8CA8

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

Preview Lab → · Contrast checker → · Palette generator →