#0B3F3F#0B3F3F

#0B3F3F is a dark, muted teal. Relative luminance 0.040; OKLCH L 33.6% C 0.052 H 195.0°. Best body text is #FFFFFF at 11.69:1 contrast (WCAG AA passes).

Color values

HEX	#0B3F3F
RGB	rgb(11, 63, 63)
HSL	hsl(180, 70%, 15%)
HSV	hsv(180, 83%, 25%)
CMYK	cmyk(82.5%, 0%, 0%, 75.3%)
CIE-LAB	lab(23.62, -16.13, -4.82)
CIE-LCH	lch(23.62, 16.84, 196.62°)
OKLab	oklab(33.55% -0.0501 -0.0134)
OKLCH	oklch(33.55% 0.052 195)
XYZ	xyz(2.8123, 3.9847, 5.3226)
Luminance	0.0398 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B3F3F #3F0B0B

analogous

#0B3F25 #0B3F3F #0B253F

triadic

#0B3F3F #3F0B3F #3F3F0B

tetradic

#0B3F3F #250B3F #3F0B0B #253F0B

square

#0B3F3F #250B3F #3F0B0B #253F0B

split-complementary

#0B3F3F #3F0B25 #3F250B

monochromatic

#051A1A #051A1A #0B3F3F #147373 #1DA7A7

Accessibility & contrast

On white

11.69

#0B3F3F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#0B3F3F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B3F3F

11.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B3F3F	#FFFFFF	#000000	##FFFFFF
##0B3F3F	1.00	11.69	1.80	11.69
#FFFFFF	11.69	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A3B3F

Deuteranopia (green-blind)

#33363F

Tritanopia (blue-blind)

#00413F

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #0b3f3f;
/* rgb */ color: rgb(11, 63, 63);
/* oklch */ color: oklch(33.6% 0.052 195.0);

Tailwind

colors: {
  custom: {
    50: '#557474',
    500: '#0b3f3f',
    950: '#000000',
  },
}

SCSS

$custom: #0b3f3f;
$custom-light: #557474;
$custom-dark: #000000;

JSON

{
  "hex": "#0b3f3f",
  "rgb": {
    "r": 11,
    "g": 63,
    "b": 63
  },
  "hsl": {
    "h": 180,
    "s": 70.27,
    "l": 14.51
  },
  "oklch": {
    "l": 0.33552,
    "c": 0.05187,
    "h": 195
  },
  "luminance": 0.03985
}

Semantic roles & 50–950 ramp

primary

#0B3F3F

secondary

#7C2A2A

accent

#3B3BED

background

#F5F7F7

surface

#E9EDED

border

#C5C8C8

text

#030808

muted

#787B7B

Preview Lab

Preview with #0B3F3F

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

Preview Lab → · Contrast checker → · Palette generator →