#0A3739#0A3739

#0A3739 is a dark, muted teal. Relative luminance 0.031; OKLCH L 30.9% C 0.047 H 199.4°. Best body text is #FFFFFF at 12.98:1 contrast (WCAG AA passes).

Color values

HEX	#0A3739
RGB	rgb(10, 55, 57)
HSL	hsl(183, 70%, 13%)
HSV	hsv(183, 82%, 22%)
CMYK	cmyk(82.5%, 3.5%, 0%, 77.6%)
CIE-LAB	lab(20.41, -13.80, -5.59)
CIE-LCH	lch(20.41, 14.90, 202.06°)
OKLab	oklab(30.86% -0.044 -0.0155)
OKLCH	oklch(30.86% 0.047 199.4)
XYZ	xyz(2.2296, 3.0921, 4.3494)
Luminance	0.0309 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A3739 #390C0A

analogous

#0A3923 #0A3739 #0A1F39

triadic

#0A3739 #390A37 #37390A

tetradic

#0A3739 #230A39 #390C0A #1F390A

square

#0A3739 #230A39 #390C0A #1F390A

split-complementary

#0A3739 #390A1F #39230A

monochromatic

#05191A #05191A #0A3739 #13696D #1C9BA1

Accessibility & contrast

On white

12.98

#0A3739 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#0A3739 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A3739

12.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A3739	#FFFFFF	#000000	##FFFFFF
##0A3739	1.00	12.98	1.62	12.98
#FFFFFF	12.98	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323439

Deuteranopia (green-blind)

#2B2F39

Tritanopia (blue-blind)

#003937

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #0a3739;
/* rgb */ color: rgb(10, 55, 57);
/* oklch */ color: oklch(30.9% 0.047 199.4);

Tailwind

colors: {
  custom: {
    50: '#526e6f',
    500: '#0a3739',
    950: '#000000',
  },
}

SCSS

$custom: #0a3739;
$custom-light: #526e6f;
$custom-dark: #000000;

JSON

{
  "hex": "#0a3739",
  "rgb": {
    "r": 10,
    "g": 55,
    "b": 57
  },
  "hsl": {
    "h": 182.553,
    "s": 70.149,
    "l": 13.137
  },
  "oklch": {
    "l": 0.30864,
    "c": 0.04671,
    "h": 199.4
  },
  "luminance": 0.03092
}

Semantic roles & 50–950 ramp

primary

#0A3739

secondary

#762C28

accent

#423BED

background

#F4F6F6

surface

#E7EBEC

border

#C3C6C7

text

#030707

muted

#787A7A

Preview Lab

Preview with #0A3739

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

Preview Lab → · Contrast checker → · Palette generator →