#1B8581#1B8581

#1B8581 is a mid, moderate teal. Relative luminance 0.186; OKLCH L 56.0% C 0.090 H 191.0°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#1B8581
RGB	rgb(27, 133, 129)
HSL	hsl(178, 66%, 31%)
HSV	hsv(178, 80%, 52%)
CMYK	cmyk(79.7%, 0%, 3%, 47.8%)
CIE-LAB	lab(50.21, -29.08, -6.12)
CIE-LCH	lch(50.21, 29.72, 191.89°)
OKLab	oklab(56% -0.0884 -0.0171)
OKLCH	oklch(56% 0.09 191)
XYZ	xyz(12.8001, 18.5915, 23.6785)
Luminance	0.1859 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B8581 #851B1F

analogous

#1B854C #1B8581 #1B5485

triadic

#1B8581 #811B85 #85811B

tetradic

#1B8581 #4C1B85 #851B1F #54851B

square

#1B8581 #4C1B85 #851B1F #54851B

split-complementary

#1B8581 #851B54 #854C1B

monochromatic

#061F1E #115250 #1B8581 #25B8B2 #42D9D3

Accessibility & contrast

On white

4.45

#1B8581 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#1B8581 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B8581

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B8581	#FFFFFF	#000000	##000000
##1B8581	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D7E81

Deuteranopia (green-blind)

#6E7382

Tritanopia (blue-blind)

#008984

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #1b8581;
/* rgb */ color: rgb(27, 133, 129);
/* oklch */ color: oklch(56.0% 0.090 191.0);

Tailwind

colors: {
  custom: {
    50: '#6ca9a5',
    500: '#1b8581',
    950: '#000000',
  },
}

SCSS

$custom: #1b8581;
$custom-light: #6ca9a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1b8581",
  "rgb": {
    "r": 27,
    "g": 133,
    "b": 129
  },
  "hsl": {
    "h": 177.736,
    "s": 66.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.55995,
    "c": 0.09002,
    "h": 191
  },
  "luminance": 0.18593
}

Semantic roles & 50–950 ramp

primary

#1B8581

secondary

#B84448

accent

#3F45E9

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#08100F

muted

#7B7F7F

Preview Lab

Preview with #1B8581

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

Preview Lab → · Contrast checker → · Palette generator →