#1B573C#1B573C

#1B573C is a dark, moderate teal. Relative luminance 0.074; OKLCH L 41.0% C 0.077 H 160.4°. Best body text is #FFFFFF at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#1B573C
RGB	rgb(27, 87, 60)
HSL	hsl(153, 53%, 22%)
HSV	hsv(153, 69%, 34%)
CMYK	cmyk(69%, 0%, 31%, 65.9%)
CIE-LAB	lab(32.65, -26.48, 10.16)
CIE-LCH	lch(32.65, 28.36, 159.01°)
OKLab	oklab(41.01% -0.0724 0.0258)
OKLCH	oklch(41.01% 0.077 160.4)
XYZ	xyz(4.6754, 7.3752, 5.4512)
Luminance	0.0738 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B573C #571B36

analogous

#1B571E #1B573C #1B5457

triadic

#1B573C #3C1B57 #573C1B

tetradic

#1B573C #1E1B57 #571B36 #54571B

square

#1B573C #1E1B57 #571B36 #54571B

split-complementary

#1B573C #571B54 #571E1B

monochromatic

#071710 #0D281C #1B573C #29865C #38B47C

Accessibility & contrast

On white

8.48

#1B573C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#1B573C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B573C

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B573C	#FFFFFF	#000000	##FFFFFF
##1B573C	1.00	8.48	2.48	8.48
#FFFFFF	8.48	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#56503A

Deuteranopia (green-blind)

#4E4A3E

Tritanopia (blue-blind)

#005750

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1b573c;
/* rgb */ color: rgb(27, 87, 60);
/* oklch */ color: oklch(41.0% 0.077 160.4);

Tailwind

colors: {
  custom: {
    50: '#5f8771',
    500: '#1b573c',
    950: '#000000',
  },
}

SCSS

$custom: #1b573c;
$custom-light: #5f8771;
$custom-dark: #000000;

JSON

{
  "hex": "#1b573c",
  "rgb": {
    "r": 27,
    "g": 87,
    "b": 60
  },
  "hsl": {
    "h": 153,
    "s": 52.632,
    "l": 22.353
  },
  "oklch": {
    "l": 0.41012,
    "c": 0.07688,
    "h": 160.4
  },
  "luminance": 0.07376
}

Semantic roles & 50–950 ramp

primary

#1B573C

secondary

#8D4163

accent

#4C8DDC

background

#F5F8F6

surface

#EAEFEC

border

#C6CAC7

text

#050B07

muted

#797C7A

Preview Lab

Preview with #1B573C

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

Preview Lab → · Contrast checker → · Palette generator →