#0A403E#0A403E

#0A403E is a dark, muted teal. Relative luminance 0.041; OKLCH L 33.8% C 0.053 H 191.2°. Best body text is #FFFFFF at 11.57:1 contrast (WCAG AA passes).

Color values

HEX	#0A403E
RGB	rgb(10, 64, 62)
HSL	hsl(178, 73%, 15%)
HSV	hsv(178, 84%, 25%)
CMYK	cmyk(84.4%, 0%, 3.1%, 74.9%)
CIE-LAB	lab(23.93, -17.18, -3.69)
CIE-LCH	lch(23.93, 17.58, 192.13°)
OKLab	oklab(33.78% -0.0523 -0.0103)
OKLCH	oklch(33.78% 0.053 191.2)
XYZ	xyz(2.8277, 4.0788, 5.1947)
Luminance	0.0408 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A403E #400A0C

analogous

#0A4023 #0A403E #0A2740

triadic

#0A403E #3E0A40 #403E0A

tetradic

#0A403E #230A40 #400A0C #27400A

square

#0A403E #230A40 #400A0C #27400A

split-complementary

#0A403E #400A27 #40230A

monochromatic

#041A1A #041A1A #0A403E #127571 #1BAAA5

Accessibility & contrast

On white

11.57

#0A403E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#0A403E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A403E

11.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A403E	#FFFFFF	#000000	##FFFFFF
##0A403E	1.00	11.57	1.82	11.57
#FFFFFF	11.57	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C3C3E

Deuteranopia (green-blind)

#34373E

Tritanopia (blue-blind)

#00423F

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #0a403e;
/* rgb */ color: rgb(10, 64, 62);
/* oklch */ color: oklch(33.8% 0.053 191.2);

Tailwind

colors: {
  custom: {
    50: '#557573',
    500: '#0a403e',
    950: '#000000',
  },
}

SCSS

$custom: #0a403e;
$custom-light: #557573;
$custom-dark: #000000;

JSON

{
  "hex": "#0a403e",
  "rgb": {
    "r": 10,
    "g": 64,
    "b": 62
  },
  "hsl": {
    "h": 177.778,
    "s": 72.973,
    "l": 14.51
  },
  "oklch": {
    "l": 0.33785,
    "c": 0.05328,
    "h": 191.2
  },
  "luminance": 0.04079
}

Semantic roles & 50–950 ramp

primary

#0A403E

secondary

#7D292C

accent

#383FF0

background

#F5F7F6

surface

#E9EDEC

border

#C5C8C7

text

#030808

muted

#787B7B

Preview Lab

Preview with #0A403E

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

Preview Lab → · Contrast checker → · Palette generator →