#0A3F43#0A3F43

#0A3F43 is a dark, muted teal. Relative luminance 0.040; OKLCH L 33.7% C 0.053 H 202.7°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#0A3F43
RGB	rgb(10, 63, 67)
HSL	hsl(184, 74%, 15%)
HSV	hsv(184, 85%, 26%)
CMYK	cmyk(85.1%, 6%, 0%, 73.7%)
CIE-LAB	lab(23.75, -14.83, -7.28)
CIE-LCH	lch(23.75, 16.52, 206.15°)
OKLab	oklab(33.7% -0.0484 -0.0202)
OKLCH	oklch(33.7% 0.053 202.7)
XYZ	xyz(2.9153, 4.0244, 5.9322)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A3F43 #430E0A

analogous

#0A432B #0A3F43 #0A2243

triadic

#0A3F43 #430A3F #3F430A

tetradic

#0A3F43 #2B0A43 #430E0A #22430A

square

#0A3F43 #2B0A43 #430E0A #22430A

split-complementary

#0A3F43 #430A22 #432B0A

monochromatic

#04191B #04191B #0A3F43 #127178 #1AA3AE

Accessibility & contrast

On white

11.63

#0A3F43 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#0A3F43 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A3F43

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A3F43	#FFFFFF	#000000	##FFFFFF
##0A3F43	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#393C43

Deuteranopia (green-blind)

#313643

Tritanopia (blue-blind)

#004240

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #0a3f43;
/* rgb */ color: rgb(10, 63, 67);
/* oklch */ color: oklch(33.7% 0.053 202.7);

Tailwind

colors: {
  custom: {
    50: '#557477',
    500: '#0a3f43',
    950: '#000000',
  },
}

SCSS

$custom: #0a3f43;
$custom-light: #557477;
$custom-dark: #000000;

JSON

{
  "hex": "#0a3f43",
  "rgb": {
    "r": 10,
    "g": 63,
    "b": 67
  },
  "hsl": {
    "h": 184.211,
    "s": 74.026,
    "l": 15.098
  },
  "oklch": {
    "l": 0.33703,
    "c": 0.05251,
    "h": 202.7
  },
  "luminance": 0.04025
}

Semantic roles & 50–950 ramp

primary

#0A3F43

secondary

#802F29

accent

#4437F1

background

#F5F7F7

surface

#E9EDED

border

#C5C8C8

text

#030808

muted

#787B7B

Preview Lab

Preview with #0A3F43

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

Preview Lab → · Contrast checker → · Palette generator →