#1B857F#1B857F

#1B857F is a mid, moderate teal. Relative luminance 0.185; OKLCH L 55.9% C 0.090 H 189.0°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#1B857F
RGB	rgb(27, 133, 127)
HSL	hsl(177, 66%, 31%)
HSV	hsv(177, 80%, 52%)
CMYK	cmyk(79.7%, 0%, 4.5%, 47.8%)
CIE-LAB	lab(50.14, -29.69, -5.05)
CIE-LCH	lch(50.14, 30.12, 189.64°)
OKLab	oklab(55.92% -0.0893 -0.0142)
OKLCH	oklch(55.92% 0.09 189)
XYZ	xyz(12.6685, 18.5388, 22.9852)
Luminance	0.1854 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B857F #851B21

analogous

#1B854A #1B857F #1B5685

triadic

#1B857F #7F1B85 #857F1B

tetradic

#1B857F #4A1B85 #851B21 #56851B

square

#1B857F #4A1B85 #851B21 #56851B

split-complementary

#1B857F #851B56 #854A1B

monochromatic

#061F1E #11524E #1B857F #25B8B0 #42D9D0

Accessibility & contrast

On white

4.46

#1B857F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#1B857F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B857F

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B857F	#FFFFFF	#000000	##000000
##1B857F	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D7D7F

Deuteranopia (green-blind)

#6F7380

Tritanopia (blue-blind)

#008983

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #1b857f;
/* rgb */ color: rgb(27, 133, 127);
/* oklch */ color: oklch(55.9% 0.090 189.0);

Tailwind

colors: {
  custom: {
    50: '#6ca9a4',
    500: '#1b857f',
    950: '#000000',
  },
}

SCSS

$custom: #1b857f;
$custom-light: #6ca9a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b857f",
  "rgb": {
    "r": 27,
    "g": 133,
    "b": 127
  },
  "hsl": {
    "h": 176.604,
    "s": 66.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.55923,
    "c": 0.09045,
    "h": 189
  },
  "luminance": 0.1854
}

Semantic roles & 50–950 ramp

primary

#1B857F

secondary

#B8444A

accent

#3F48E9

background

#F7FAFA

surface

#EDF4F4

border

#C8CECE

text

#08100F

muted

#7B7F7F

Preview Lab

Preview with #1B857F

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

Preview Lab → · Contrast checker → · Palette generator →