#1B5A5A#1B5A5A

#1B5A5A is a dark, moderate teal. Relative luminance 0.083; OKLCH L 42.9% C 0.062 H 195.1°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#1B5A5A
RGB	rgb(27, 90, 90)
HSL	hsl(180, 54%, 23%)
HSV	hsv(180, 70%, 35%)
CMYK	cmyk(70%, 0%, 0%, 64.7%)
CIE-LAB	lab(34.57, -19.39, -5.84)
CIE-LCH	lch(34.57, 20.25, 196.77°)
OKLab	oklab(42.86% -0.0602 -0.0162)
OKLCH	oklch(42.86% 0.062 195.1)
XYZ	xyz(5.9528, 8.2829, 10.9559)
Luminance	0.0828 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5A5A #5A1B1B

analogous

#1B5A3A #1B5A5A #1B3A5A

triadic

#1B5A5A #5A1B5A #5A5A1B

tetradic

#1B5A5A #3A1B5A #5A1B1B #3A5A1B

square

#1B5A5A #3A1B5A #5A1B1B #3A5A1B

split-complementary

#1B5A5A #5A1B3A #5A3A1B

monochromatic

#071818 #0D2B2B #1B5A5A #298989 #37B8B8

Accessibility & contrast

On white

7.90

#1B5A5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#1B5A5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5A5A

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5A5A	#FFFFFF	#000000	##FFFFFF
##1B5A5A	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#54555A

Deuteranopia (green-blind)

#4A4E5A

Tritanopia (blue-blind)

#005D5A

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1b5a5a;
/* rgb */ color: rgb(27, 90, 90);
/* oklch */ color: oklch(42.9% 0.062 195.1);

Tailwind

colors: {
  custom: {
    50: '#628988',
    500: '#1b5a5a',
    950: '#000000',
  },
}

SCSS

$custom: #1b5a5a;
$custom-light: #628988;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5a5a",
  "rgb": {
    "r": 27,
    "g": 90,
    "b": 90
  },
  "hsl": {
    "h": 180,
    "s": 53.846,
    "l": 22.941
  },
  "oklch": {
    "l": 0.42864,
    "c": 0.06236,
    "h": 195.1
  },
  "luminance": 0.08284
}

Semantic roles & 50–950 ramp

primary

#1B5A5A

secondary

#904141

accent

#4B4BDD

background

#F6F8F8

surface

#EBF0EF

border

#C6CBCA

text

#060B0B

muted

#7A7C7C

Preview Lab

Preview with #1B5A5A

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

Preview Lab → · Contrast checker → · Palette generator →