#1B9AB4#1B9AB4

#1B9AB4 is a light, moderate cyan. Relative luminance 0.266; OKLCH L 63.4% C 0.107 H 216.3°. Best body text is #000000 at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#1B9AB4
RGB	rgb(27, 154, 180)
HSL	hsl(190, 74%, 41%)
HSV	hsv(190, 85%, 71%)
CMYK	cmyk(85%, 14.4%, 0%, 29.4%)
CIE-LAB	lab(58.64, -23.12, -22.73)
CIE-LCH	lch(58.64, 32.42, 224.51°)
OKLab	oklab(63.42% -0.0867 -0.0636)
OKLCH	oklch(63.42% 0.108 216.3)
XYZ	xyz(20.2423, 26.6369, 47.2457)
Luminance	0.2664 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9AB4 #B4351B

analogous

#1BB481 #1B9AB4 #1B4DB4

triadic

#1B9AB4 #B41B9A #9AB41B

tetradic

#1B9AB4 #811BB4 #B4351B #4DB41B

square

#1B9AB4 #811BB4 #B4351B #4DB41B

split-complementary

#1B9AB4 #B41B4D #B4811B

monochromatic

#0B3F4A #136C7F #1B9AB4 #2DC1DF #62D1E7

Accessibility & contrast

On white

3.32

#1B9AB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.33

#1B9AB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9AB4

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9AB4	#FFFFFF	#000000	##000000
##1B9AB4	1.00	3.32	6.33	6.33
#FFFFFF	3.32	1.00	21.00	21.00
#000000	6.33	21.00	1.00	1.00
##000000	6.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8995B5

Deuteranopia (green-blind)

#7587B4

Tritanopia (blue-blind)

#00A3A2

Achromatopsia (no color)

#8D8D8D

Design tokens & code

CSS

--color: #1b9ab4;
/* rgb */ color: rgb(27, 154, 180);
/* oklch */ color: oklch(63.4% 0.107 216.3);

Tailwind

colors: {
  custom: {
    50: '#76b8ca',
    500: '#1b9ab4',
    950: '#000000',
  },
}

SCSS

$custom: #1b9ab4;
$custom-light: #76b8ca;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9ab4",
  "rgb": {
    "r": 27,
    "g": 154,
    "b": 180
  },
  "hsl": {
    "h": 190.196,
    "s": 73.913,
    "l": 40.588
  },
  "oklch": {
    "l": 0.63416,
    "c": 0.1075,
    "h": 216.3
  },
  "luminance": 0.2664
}

Semantic roles & 50–950 ramp

primary

#1B9AB4

secondary

#CC715F

accent

#5737F1

background

#F7FBFC

surface

#EEF6F8

border

#C9D0D1

text

#0A1113

muted

#7C8082

Preview Lab

Preview with #1B9AB4

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

Preview Lab → · Contrast checker → · Palette generator →