#0A403A#0A403A

#0A403A is a dark, muted teal. Relative luminance 0.040; OKLCH L 33.6% C 0.055 H 183.8°. Best body text is #FFFFFF at 11.62:1 contrast (WCAG AA passes).

Color values

HEX	#0A403A
RGB	rgb(10, 64, 58)
HSL	hsl(173, 73%, 15%)
HSV	hsv(173, 84%, 25%)
CMYK	cmyk(84.4%, 0%, 9.4%, 74.9%)
CIE-LAB	lab(23.79, -18.54, -1.24)
CIE-LCH	lch(23.79, 18.58, 183.83°)
OKLab	oklab(33.63% -0.0545 -0.0036)
OKLCH	oklch(33.63% 0.055 183.8)
XYZ	xyz(2.7219, 4.0365, 4.6378)
Luminance	0.0404 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A403A #400A10

analogous

#0A401F #0A403A #0A2B40

triadic

#0A403A #3A0A40 #403A0A

tetradic

#0A403A #1F0A40 #400A10 #2B400A

square

#0A403A #1F0A40 #400A10 #2B400A

split-complementary

#0A403A #400A2B #401F0A

monochromatic

#041A18 #041A18 #0A403A #12756A #1BAA9A

Accessibility & contrast

On white

11.62

#0A403A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#0A403A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A403A

11.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A403A	#FFFFFF	#000000	##FFFFFF
##0A403A	1.00	11.62	1.81	11.62
#FFFFFF	11.62	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C3C3A

Deuteranopia (green-blind)

#35363B

Tritanopia (blue-blind)

#00423E

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #0a403a;
/* rgb */ color: rgb(10, 64, 58);
/* oklch */ color: oklch(33.6% 0.055 183.8);

Tailwind

colors: {
  custom: {
    50: '#547570',
    500: '#0a403a',
    950: '#000000',
  },
}

SCSS

$custom: #0a403a;
$custom-light: #547570;
$custom-dark: #000000;

JSON

{
  "hex": "#0a403a",
  "rgb": {
    "r": 10,
    "g": 64,
    "b": 58
  },
  "hsl": {
    "h": 173.333,
    "s": 72.973,
    "l": 14.51
  },
  "oklch": {
    "l": 0.33626,
    "c": 0.05458,
    "h": 183.8
  },
  "luminance": 0.04037
}

Semantic roles & 50–950 ramp

primary

#0A403A

secondary

#7D2932

accent

#384DF0

background

#F5F7F6

surface

#E9EDEC

border

#C5C8C7

text

#030807

muted

#787B7A

Preview Lab

Preview with #0A403A

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

Preview Lab → · Contrast checker → · Palette generator →