#1B9ABC#1B9ABC

#1B9ABC is a light, moderate cyan. Relative luminance 0.270; OKLCH L 63.8% C 0.112 H 222.0°. Best body text is #000000 at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#1B9ABC
RGB	rgb(27, 154, 188)
HSL	hsl(193, 75%, 42%)
HSV	hsv(193, 86%, 74%)
CMYK	cmyk(85.6%, 18.1%, 0%, 26.3%)
CIE-LAB	lab(58.95, -20.40, -26.77)
CIE-LCH	lch(58.95, 33.65, 232.70°)
OKLab	oklab(63.77% -0.0835 -0.0751)
OKLCH	oklch(63.77% 0.112 222)
XYZ	xyz(21.0808, 26.9723, 51.6623)
Luminance	0.2697 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9ABC #BC3D1B

analogous

#1BBC8E #1B9ABC #1B49BC

triadic

#1B9ABC #BC1B9A #9ABC1B

tetradic

#1B9ABC #8E1BBC #BC3D1B #49BC1B

square

#1B9ABC #8E1BBC #BC3D1B #49BC1B

split-complementary

#1B9ABC #BC1B49 #BC8E1B

monochromatic

#0C4251 #136E86 #1B9ABC #33BDE2 #68CEE9

Accessibility & contrast

On white

3.28

#1B9ABC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.40

#1B9ABC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9ABC

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9ABC	#FFFFFF	#000000	##000000
##1B9ABC	1.00	3.28	6.40	6.40
#FFFFFF	3.28	1.00	21.00	21.00
#000000	6.40	21.00	1.00	1.00
##000000	6.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8696BE

Deuteranopia (green-blind)

#7287BC

Tritanopia (blue-blind)

#00A5A5

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #1b9abc;
/* rgb */ color: rgb(27, 154, 188);
/* oklch */ color: oklch(63.8% 0.112 222.0);

Tailwind

colors: {
  custom: {
    50: '#77b8d0',
    500: '#1b9abc',
    950: '#000000',
  },
}

SCSS

$custom: #1b9abc;
$custom-light: #77b8d0;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9abc",
  "rgb": {
    "r": 27,
    "g": 154,
    "b": 188
  },
  "hsl": {
    "h": 192.671,
    "s": 74.884,
    "l": 42.157
  },
  "oklch": {
    "l": 0.6377,
    "c": 0.11233,
    "h": 222
  },
  "luminance": 0.26975
}

Semantic roles & 50–950 ramp

primary

#1B9ABC

secondary

#CF7B64

accent

#5E36F2

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0A1114

muted

#7C8082

Preview Lab

Preview with #1B9ABC

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

Preview Lab → · Contrast checker → · Palette generator →