#0A3840#0A3840

#0A3840 is a dark, muted teal. Relative luminance 0.033; OKLCH L 31.5% C 0.049 H 212.0°. Best body text is #FFFFFF at 12.71:1 contrast (WCAG AA passes).

Color values

HEX	#0A3840
RGB	rgb(10, 56, 64)
HSL	hsl(189, 73%, 15%)
HSV	hsv(189, 84%, 25%)
CMYK	cmyk(84.4%, 12.5%, 0%, 74.9%)
CIE-LAB	lab(21.07, -11.78, -9.34)
CIE-LCH	lch(21.07, 15.04, 218.41°)
OKLab	oklab(31.49% -0.0417 -0.026)
OKLCH	oklch(31.49% 0.049 212)
XYZ	xyz(2.4644, 3.2627, 5.3494)
Luminance	0.0326 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A3840 #40120A

analogous

#0A402D #0A3840 #0A1D40

triadic

#0A3840 #400A38 #38400A

tetradic

#0A3840 #2D0A40 #40120A #1D400A

square

#0A3840 #2D0A40 #40120A #1D400A

split-complementary

#0A3840 #400A1D #402D0A

monochromatic

#04171A #04171A #0A3840 #126675 #1B95AA

Accessibility & contrast

On white

12.71

#0A3840 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#0A3840 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A3840

12.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A3840	#FFFFFF	#000000	##FFFFFF
##0A3840	1.00	12.71	1.65	12.71
#FFFFFF	12.71	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323640

Deuteranopia (green-blind)

#2A3040

Tritanopia (blue-blind)

#003B3A

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #0a3840;
/* rgb */ color: rgb(10, 56, 64);
/* oklch */ color: oklch(31.5% 0.049 212.0);

Tailwind

colors: {
  custom: {
    50: '#546e74',
    500: '#0a3840',
    950: '#000000',
  },
}

SCSS

$custom: #0a3840;
$custom-light: #546e74;
$custom-dark: #000000;

JSON

{
  "hex": "#0a3840",
  "rgb": {
    "r": 10,
    "g": 56,
    "b": 64
  },
  "hsl": {
    "h": 188.889,
    "s": 72.973,
    "l": 14.51
  },
  "oklch": {
    "l": 0.31492,
    "c": 0.04912,
    "h": 212
  },
  "luminance": 0.03263
}

Semantic roles & 50–950 ramp

primary

#0A3840

secondary

#7D3529

accent

#5338F0

background

#F5F6F7

surface

#E9ECED

border

#C5C7C8

text

#030708

muted

#787A7B

Preview Lab

Preview with #0A3840

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

Preview Lab → · Contrast checker → · Palette generator →