#1B565B#1B565B

#1B565B is a dark, muted teal. Relative luminance 0.076; OKLCH L 41.8% C 0.060 H 203.1°. Best body text is #FFFFFF at 8.30:1 contrast (WCAG AA passes).

Color values

HEX	#1B565B
RGB	rgb(27, 86, 91)
HSL	hsl(185, 54%, 23%)
HSV	hsv(185, 70%, 36%)
CMYK	cmyk(70.3%, 5.5%, 0%, 64.3%)
CIE-LAB	lab(33.23, -16.86, -8.47)
CIE-LCH	lch(33.23, 18.87, 206.69°)
OKLab	oklab(41.8% -0.055 -0.0235)
OKLCH	oklch(41.8% 0.06 203.1)
XYZ	xyz(5.6673, 7.6433, 11.0721)
Luminance	0.0764 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B565B #5B201B

analogous

#1B5B40 #1B565B #1B365B

triadic

#1B565B #5B1B56 #565B1B

tetradic

#1B565B #401B5B #5B201B #365B1B

square

#1B565B #401B5B #5B201B #365B1B

split-complementary

#1B565B #5B1B36 #5B401B

monochromatic

#071618 #0D292C #1B565B #29838A #37AFB9

Accessibility & contrast

On white

8.30

#1B565B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#1B565B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B565B

8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B565B	#FFFFFF	#000000	##FFFFFF
##1B565B	1.00	8.30	2.53	8.30
#FFFFFF	8.30	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F525B

Deuteranopia (green-blind)

#454B5B

Tritanopia (blue-blind)

#005A57

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1b565b;
/* rgb */ color: rgb(27, 86, 91);
/* oklch */ color: oklch(41.8% 0.060 203.1);

Tailwind

colors: {
  custom: {
    50: '#618689',
    500: '#1b565b',
    950: '#000000',
  },
}

SCSS

$custom: #1b565b;
$custom-light: #618689;
$custom-dark: #000000;

JSON

{
  "hex": "#1b565b",
  "rgb": {
    "r": 27,
    "g": 86,
    "b": 91
  },
  "hsl": {
    "h": 184.688,
    "s": 54.237,
    "l": 23.137
  },
  "oklch": {
    "l": 0.41795,
    "c": 0.05982,
    "h": 203.1
  },
  "luminance": 0.07644
}

Semantic roles & 50–950 ramp

primary

#1B565B

secondary

#914741

accent

#564ADE

background

#F6F8F8

surface

#EBEFF0

border

#C6CACB

text

#050B0B

muted

#7A7C7C

Preview Lab

Preview with #1B565B

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

Preview Lab → · Contrast checker → · Palette generator →