#1B585A#1B585A

#1B585A is a dark, moderate teal. Relative luminance 0.080; OKLCH L 42.3% C 0.061 H 198.2°. Best body text is #FFFFFF at 8.11:1 contrast (WCAG AA passes).

Color values

HEX	#1B585A
RGB	rgb(27, 88, 90)
HSL	hsl(182, 54%, 23%)
HSV	hsv(182, 70%, 35%)
CMYK	cmyk(70%, 2.2%, 0%, 64.7%)
CIE-LAB	lab(33.88, -18.30, -6.87)
CIE-LCH	lch(33.88, 19.55, 200.57°)
OKLab	oklab(42.31% -0.0579 -0.019)
OKLCH	oklch(42.31% 0.061 198.2)
XYZ	xyz(5.7864, 7.9500, 10.9004)
Luminance	0.0795 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B585A #5A1D1B

analogous

#1B5A3C #1B585A #1B385A

triadic

#1B585A #5A1B58 #585A1B

tetradic

#1B585A #3C1B5A #5A1D1B #385A1B

square

#1B585A #3C1B5A #5A1D1B #385A1B

split-complementary

#1B585A #5A1B38 #5A3C1B

monochromatic

#071718 #0D2A2B #1B585A #298689 #37B4B8

Accessibility & contrast

On white

8.11

#1B585A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.59

#1B585A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B585A

8.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B585A	#FFFFFF	#000000	##FFFFFF
##1B585A	1.00	8.11	2.59	8.11
#FFFFFF	8.11	1.00	21.00	1.00
#000000	2.59	21.00	1.00	21.00
##FFFFFF	8.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#52545A

Deuteranopia (green-blind)

#484D5A

Tritanopia (blue-blind)

#005B58

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1b585a;
/* rgb */ color: rgb(27, 88, 90);
/* oklch */ color: oklch(42.3% 0.061 198.2);

Tailwind

colors: {
  custom: {
    50: '#618788',
    500: '#1b585a',
    950: '#000000',
  },
}

SCSS

$custom: #1b585a;
$custom-light: #618788;
$custom-dark: #000000;

JSON

{
  "hex": "#1b585a",
  "rgb": {
    "r": 27,
    "g": 88,
    "b": 90
  },
  "hsl": {
    "h": 181.905,
    "s": 53.846,
    "l": 22.941
  },
  "oklch": {
    "l": 0.42308,
    "c": 0.06092,
    "h": 198.2
  },
  "luminance": 0.07951
}

Semantic roles & 50–950 ramp

primary

#1B585A

secondary

#904441

accent

#4F4BDD

background

#F6F8F8

surface

#EBEFEF

border

#C6CACA

text

#050B0B

muted

#7A7C7C

Preview Lab

Preview with #1B585A

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

Preview Lab → · Contrast checker → · Palette generator →