#0A4243#0A4243

#0A4243 is a dark, muted teal. Relative luminance 0.044; OKLCH L 34.6% C 0.054 H 196.8°. Best body text is #FFFFFF at 11.21:1 contrast (WCAG AA passes).

Color values

HEX	#0A4243
RGB	rgb(10, 66, 67)
HSL	hsl(181, 74%, 15%)
HSV	hsv(181, 85%, 26%)
CMYK	cmyk(85.1%, 1.5%, 0%, 73.7%)
CIE-LAB	lab(24.85, -16.55, -5.64)
CIE-LCH	lch(24.85, 17.48, 198.81°)
OKLab	oklab(34.59% -0.052 -0.0157)
OKLCH	oklch(34.59% 0.054 196.8)
XYZ	xyz(3.0860, 4.3658, 5.9891)
Luminance	0.0437 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A4243 #430B0A

analogous

#0A4328 #0A4243 #0A2543

triadic

#0A4243 #430A42 #42430A

tetradic

#0A4243 #280A43 #430B0A #25430A

square

#0A4243 #280A43 #430B0A #25430A

split-complementary

#0A4243 #430A25 #43280A

monochromatic

#041A1B #041A1B #0A4243 #127678 #1AABAE

Accessibility & contrast

On white

11.21

#0A4243 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#0A4243 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A4243

11.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A4243	#FFFFFF	#000000	##FFFFFF
##0A4243	1.00	11.21	1.87	11.21
#FFFFFF	11.21	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D3E43

Deuteranopia (green-blind)

#353843

Tritanopia (blue-blind)

#004542

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #0a4243;
/* rgb */ color: rgb(10, 66, 67);
/* oklch */ color: oklch(34.6% 0.054 196.8);

Tailwind

colors: {
  custom: {
    50: '#567677',
    500: '#0a4243',
    950: '#000000',
  },
}

SCSS

$custom: #0a4243;
$custom-light: #567677;
$custom-dark: #000000;

JSON

{
  "hex": "#0a4243",
  "rgb": {
    "r": 10,
    "g": 66,
    "b": 67
  },
  "hsl": {
    "h": 181.053,
    "s": 74.026,
    "l": 15.098
  },
  "oklch": {
    "l": 0.34589,
    "c": 0.05429,
    "h": 196.8
  },
  "luminance": 0.04366
}

Semantic roles & 50–950 ramp

primary

#0A4243

secondary

#802A29

accent

#3A37F1

background

#F5F7F7

surface

#E9EDED

border

#C5C8C8

text

#030808

muted

#787B7B

Preview Lab

Preview with #0A4243

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

Preview Lab → · Contrast checker → · Palette generator →