#0A3F39#0A3F39

#0A3F39 is a dark, muted teal. Relative luminance 0.039; OKLCH L 33.3% C 0.054 H 183.7°. Best body text is #FFFFFF at 11.78:1 contrast (WCAG AA passes).

Color values

HEX	#0A3F39
RGB	rgb(10, 63, 57)
HSL	hsl(173, 73%, 14%)
HSV	hsv(173, 84%, 25%)
CMYK	cmyk(84.1%, 0%, 9.5%, 75.3%)
CIE-LAB	lab(23.39, -18.33, -1.17)
CIE-LCH	lch(23.39, 18.37, 183.65°)
OKLab	oklab(33.28% -0.0538 -0.0035)
OKLCH	oklch(33.28% 0.054 183.7)
XYZ	xyz(2.6408, 3.9146, 4.4865)
Luminance	0.0391 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A3F39 #3F0A10

analogous

#0A3F1F #0A3F39 #0A2B3F

triadic

#0A3F39 #390A3F #3F390A

tetradic

#0A3F39 #1F0A3F #3F0A10 #2B3F0A

square

#0A3F39 #1F0A3F #3F0A10 #2B3F0A

split-complementary

#0A3F39 #3F0A2B #3F1F0A

monochromatic

#041A18 #041A18 #0A3F39 #127469 #1BA999

Accessibility & contrast

On white

11.78

#0A3F39 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#0A3F39 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A3F39

11.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A3F39	#FFFFFF	#000000	##FFFFFF
##0A3F39	1.00	11.78	1.78	11.78
#FFFFFF	11.78	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B3B39

Deuteranopia (green-blind)

#34353A

Tritanopia (blue-blind)

#00413D

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #0a3f39;
/* rgb */ color: rgb(10, 63, 57);
/* oklch */ color: oklch(33.3% 0.054 183.7);

Tailwind

colors: {
  custom: {
    50: '#54746f',
    500: '#0a3f39',
    950: '#000000',
  },
}

SCSS

$custom: #0a3f39;
$custom-light: #54746f;
$custom-dark: #000000;

JSON

{
  "hex": "#0a3f39",
  "rgb": {
    "r": 10,
    "g": 63,
    "b": 57
  },
  "hsl": {
    "h": 173.208,
    "s": 72.603,
    "l": 14.314
  },
  "oklch": {
    "l": 0.33285,
    "c": 0.05392,
    "h": 183.7
  },
  "luminance": 0.03915
}

Semantic roles & 50–950 ramp

primary

#0A3F39

secondary

#7C2932

accent

#384DEF

background

#F5F7F6

surface

#E9EDEC

border

#C5C8C7

text

#030807

muted

#787B7A

Preview Lab

Preview with #0A3F39

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

Preview Lab → · Contrast checker → · Palette generator →