#0A403F#0A403F

#0A403F is a dark, muted teal. Relative luminance 0.041; OKLCH L 33.8% C 0.053 H 193.0°. Best body text is #FFFFFF at 11.55:1 contrast (WCAG AA passes).

Color values

HEX	#0A403F
RGB	rgb(10, 64, 63)
HSL	hsl(179, 73%, 15%)
HSV	hsv(179, 84%, 25%)
CMYK	cmyk(84.4%, 0%, 1.6%, 74.9%)
CIE-LAB	lab(23.97, -16.84, -4.30)
CIE-LCH	lch(23.97, 17.38, 194.34°)
OKLab	oklab(33.83% -0.0517 -0.012)
OKLCH	oklch(33.83% 0.053 193)
XYZ	xyz(2.8554, 4.0899, 5.3406)
Luminance	0.0409 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A403F #400A0B

analogous

#0A4024 #0A403F #0A2640

triadic

#0A403F #3F0A40 #403F0A

tetradic

#0A403F #240A40 #400A0B #26400A

square

#0A403F #240A40 #400A0B #26400A

split-complementary

#0A403F #400A26 #40240A

monochromatic

#041A1A #041A1A #0A403F #127573 #1BAAA7

Accessibility & contrast

On white

11.55

#0A403F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#0A403F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A403F

11.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A403F	#FFFFFF	#000000	##FFFFFF
##0A403F	1.00	11.55	1.82	11.55
#FFFFFF	11.55	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B3C3F

Deuteranopia (green-blind)

#34373F

Tritanopia (blue-blind)

#004240

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #0a403f;
/* rgb */ color: rgb(10, 64, 63);
/* oklch */ color: oklch(33.8% 0.053 193.0);

Tailwind

colors: {
  custom: {
    50: '#557574',
    500: '#0a403f',
    950: '#000000',
  },
}

SCSS

$custom: #0a403f;
$custom-light: #557574;
$custom-dark: #000000;

JSON

{
  "hex": "#0a403f",
  "rgb": {
    "r": 10,
    "g": 64,
    "b": 63
  },
  "hsl": {
    "h": 178.889,
    "s": 72.973,
    "l": 14.51
  },
  "oklch": {
    "l": 0.33826,
    "c": 0.05311,
    "h": 193
  },
  "luminance": 0.0409
}

Semantic roles & 50–950 ramp

primary

#0A403F

secondary

#7D292A

accent

#383CF0

background

#F5F7F7

surface

#E9EDED

border

#C5C8C8

text

#030808

muted

#787B7B

Preview Lab

Preview with #0A403F

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

Preview Lab → · Contrast checker → · Palette generator →