#1B573A#1B573A

#1B573A is a dark, moderate teal. Relative luminance 0.074; OKLCH L 41.0% C 0.079 H 158.7°. Best body text is #FFFFFF at 8.50:1 contrast (WCAG AA passes).

Color values

HEX	#1B573A
RGB	rgb(27, 87, 58)
HSL	hsl(151, 53%, 22%)
HSV	hsv(151, 69%, 34%)
CMYK	cmyk(69%, 0%, 33.3%, 65.9%)
CIE-LAB	lab(32.60, -26.96, 11.33)
CIE-LCH	lch(32.60, 29.25, 157.20°)
OKLab	oklab(40.96% -0.0735 0.0287)
OKLCH	oklch(40.96% 0.079 158.7)
XYZ	xyz(4.6235, 7.3544, 5.1780)
Luminance	0.0736 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B573A #571B38

analogous

#1B571C #1B573A #1B5657

triadic

#1B573A #3A1B57 #573A1B

tetradic

#1B573A #1C1B57 #571B38 #56571B

square

#1B573A #1C1B57 #571B38 #56571B

split-complementary

#1B573A #571B56 #571C1B

monochromatic

#071710 #0D281B #1B573A #298659 #38B478

Accessibility & contrast

On white

8.50

#1B573A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#1B573A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B573A

8.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B573A	#FFFFFF	#000000	##FFFFFF
##1B573A	1.00	8.50	2.47	8.50
#FFFFFF	8.50	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#565038

Deuteranopia (green-blind)

#4E4A3C

Tritanopia (blue-blind)

#00564F

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1b573a;
/* rgb */ color: rgb(27, 87, 58);
/* oklch */ color: oklch(41.0% 0.079 158.7);

Tailwind

colors: {
  custom: {
    50: '#5f8770',
    500: '#1b573a',
    950: '#000000',
  },
}

SCSS

$custom: #1b573a;
$custom-light: #5f8770;
$custom-dark: #000000;

JSON

{
  "hex": "#1b573a",
  "rgb": {
    "r": 27,
    "g": 87,
    "b": 58
  },
  "hsl": {
    "h": 151,
    "s": 52.632,
    "l": 22.353
  },
  "oklch": {
    "l": 0.4096,
    "c": 0.0789,
    "h": 158.7
  },
  "luminance": 0.07355
}

Semantic roles & 50–950 ramp

primary

#1B573A

secondary

#8D4166

accent

#4C91DC

background

#F5F8F6

surface

#EAEFEC

border

#C6CAC7

text

#050B07

muted

#797C7A

Preview Lab

Preview with #1B573A

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

Preview Lab → · Contrast checker → · Palette generator →