#1B585B#1B585B

#1B585B is a dark, moderate teal. Relative luminance 0.080; OKLCH L 42.3% C 0.061 H 199.8°. Best body text is #FFFFFF at 8.10:1 contrast (WCAG AA passes).

Color values

HEX	#1B585B
RGB	rgb(27, 88, 91)
HSL	hsl(183, 54%, 23%)
HSV	hsv(183, 70%, 36%)
CMYK	cmyk(70.3%, 3.3%, 0%, 64.3%)
CIE-LAB	lab(33.91, -17.97, -7.44)
CIE-LCH	lch(33.91, 19.45, 202.50°)
OKLab	oklab(42.35% -0.0574 -0.0206)
OKLCH	oklch(42.35% 0.061 199.8)
XYZ	xyz(5.8292, 7.9671, 11.1261)
Luminance	0.0797 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B585B #5B1E1B

analogous

#1B5B3E #1B585B #1B385B

triadic

#1B585B #5B1B58 #585B1B

tetradic

#1B585B #3E1B5B #5B1E1B #385B1B

square

#1B585B #3E1B5B #5B1E1B #385B1B

split-complementary

#1B585B #5B1B38 #5B3E1B

monochromatic

#071718 #0D2A2C #1B585B #29868A #37B3B9

Accessibility & contrast

On white

8.10

#1B585B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#1B585B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B585B

8.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B585B	#FFFFFF	#000000	##FFFFFF
##1B585B	1.00	8.10	2.59	8.10
#FFFFFF	8.10	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#51545B

Deuteranopia (green-blind)

#484D5B

Tritanopia (blue-blind)

#005B59

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1b585b;
/* rgb */ color: rgb(27, 88, 91);
/* oklch */ color: oklch(42.3% 0.061 199.8);

Tailwind

colors: {
  custom: {
    50: '#618789',
    500: '#1b585b',
    950: '#000000',
  },
}

SCSS

$custom: #1b585b;
$custom-light: #618789;
$custom-dark: #000000;

JSON

{
  "hex": "#1b585b",
  "rgb": {
    "r": 27,
    "g": 88,
    "b": 91
  },
  "hsl": {
    "h": 182.813,
    "s": 54.237,
    "l": 23.137
  },
  "oklch": {
    "l": 0.42349,
    "c": 0.06097,
    "h": 199.8
  },
  "luminance": 0.07968
}

Semantic roles & 50–950 ramp

primary

#1B585B

secondary

#914541

accent

#514ADE

background

#F6F8F8

surface

#EBEFF0

border

#C6CACB

text

#050B0B

muted

#7A7C7C

Preview Lab

Preview with #1B585B

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

Preview Lab → · Contrast checker → · Palette generator →