#1B8CAA#1B8CAA

#1B8CAA is a mid, moderate cyan. Relative luminance 0.219; OKLCH L 59.5% C 0.103 H 221.3°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#1B8CAA
RGB	rgb(27, 140, 170)
HSL	hsl(193, 73%, 39%)
HSV	hsv(193, 84%, 67%)
CMYK	cmyk(84.1%, 17.6%, 0%, 33.3%)
CIE-LAB	lab(53.91, -19.16, -24.30)
CIE-LCH	lch(53.91, 30.95, 231.73°)
OKLab	oklab(59.48% -0.0774 -0.0681)
OKLCH	oklch(59.48% 0.103 221.3)
XYZ	xyz(17.0827, 21.8893, 41.3471)
Luminance	0.2189 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B8CAA #AA391B

analogous

#1BAA80 #1B8CAA #1B45AA

triadic

#1B8CAA #AA1B8C #8CAA1B

tetradic

#1B8CAA #801BAA #AA391B #45AA1B

square

#1B8CAA #801BAA #AA391B #45AA1B

split-complementary

#1B8CAA #AA1B45 #AA801B

monochromatic

#0A3540 #136175 #1B8CAA #26B6DC #5BC8E5

Accessibility & contrast

On white

3.90

#1B8CAA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#1B8CAA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B8CAA

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B8CAA	#FFFFFF	#000000	##000000
##1B8CAA	1.00	3.90	5.38	5.38
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A88AC

Deuteranopia (green-blind)

#687BAA

Tritanopia (blue-blind)

#009596

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #1b8caa;
/* rgb */ color: rgb(27, 140, 170);
/* oklch */ color: oklch(59.5% 0.103 221.3);

Tailwind

colors: {
  custom: {
    50: '#73adc3',
    500: '#1b8caa',
    950: '#000000',
  },
}

SCSS

$custom: #1b8caa;
$custom-light: #73adc3;
$custom-dark: #000000;

JSON

{
  "hex": "#1b8caa",
  "rgb": {
    "r": 27,
    "g": 140,
    "b": 170
  },
  "hsl": {
    "h": 192.587,
    "s": 72.589,
    "l": 38.627
  },
  "oklch": {
    "l": 0.5948,
    "c": 0.10311,
    "h": 221.3
  },
  "luminance": 0.21891
}

Semantic roles & 50–950 ramp

primary

#1B8CAA

secondary

#C97058

accent

#5F39EF

background

#F7FAFC

surface

#EEF4F8

border

#C9CED1

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #1B8CAA

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

Preview Lab → · Contrast checker → · Palette generator →