#105A5B#105A5B

#105A5B is a dark, moderate teal. Relative luminance 0.082; OKLCH L 42.6% C 0.067 H 196.3°. Best body text is #FFFFFF at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#105A5B
RGB	rgb(16, 90, 91)
HSL	hsl(181, 70%, 21%)
HSV	hsv(181, 82%, 36%)
CMYK	cmyk(82.4%, 1.1%, 0%, 64.3%)
CIE-LAB	lab(34.35, -20.66, -6.82)
CIE-LCH	lch(34.35, 21.75, 198.27°)
OKLab	oklab(42.63% -0.0647 -0.019)
OKLCH	oklch(42.63% 0.067 196.3)
XYZ	xyz(5.7573, 8.1771, 11.1704)
Luminance	0.0818 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#105A5B #5B1110

analogous

#105B36 #105A5B #10345B

triadic

#105A5B #5B105A #5A5B10

tetradic

#105A5B #36105B #5B1110 #345B10

square

#105A5B #36105B #5B1110 #345B10

split-complementary

#105A5B #5B1034 #5B3610

monochromatic

#051A1A #072727 #105A5B #198D8F #22C1C3

Accessibility & contrast

On white

7.97

#105A5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#105A5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #105A5B

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##105A5B	#FFFFFF	#000000	##FFFFFF
##105A5B	1.00	7.97	2.64	7.97
#FFFFFF	7.97	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#53555B

Deuteranopia (green-blind)

#494D5B

Tritanopia (blue-blind)

#005D5A

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #105a5b;
/* rgb */ color: rgb(16, 90, 91);
/* oklch */ color: oklch(42.6% 0.067 196.3);

Tailwind

colors: {
  custom: {
    50: '#5e8989',
    500: '#105a5b',
    950: '#000000',
  },
}

SCSS

$custom: #105a5b;
$custom-light: #5e8989;
$custom-dark: #000000;

JSON

{
  "hex": "#105a5b",
  "rgb": {
    "r": 16,
    "g": 90,
    "b": 91
  },
  "hsl": {
    "h": 180.8,
    "s": 70.093,
    "l": 20.98
  },
  "oklch": {
    "l": 0.42628,
    "c": 0.06744,
    "h": 196.3
  },
  "luminance": 0.08178
}

Semantic roles & 50–950 ramp

primary

#105A5B

secondary

#943433

accent

#3D3BED

background

#F5F8F8

surface

#EAF0F0

border

#C6CBCB

text

#050B0B

muted

#797C7C

Preview Lab

Preview with #105A5B

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

Preview Lab → · Contrast checker → · Palette generator →