#0B403B#0B403B

#0B403B is a dark, muted teal. Relative luminance 0.041; OKLCH L 33.7% C 0.054 H 185.6°. Best body text is #FFFFFF at 11.60:1 contrast (WCAG AA passes).

Color values

HEX	#0B403B
RGB	rgb(11, 64, 59)
HSL	hsl(174, 71%, 15%)
HSV	hsv(174, 83%, 25%)
CMYK	cmyk(82.8%, 0%, 7.8%, 74.9%)
CIE-LAB	lab(23.85, -18.06, -1.82)
CIE-LCH	lch(23.85, 18.16, 185.75°)
OKLab	oklab(33.69% -0.0535 -0.0052)
OKLCH	oklch(33.69% 0.054 185.6)
XYZ	xyz(2.7604, 4.0534, 4.7737)
Luminance	0.0405 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B403B #400B10

analogous

#0B4021 #0B403B #0B2B40

triadic

#0B403B #3B0B40 #403B0B

tetradic

#0B403B #210B40 #400B10 #2B400B

square

#0B403B #210B40 #400B10 #2B400B

split-complementary

#0B403B #400B2B #40210B

monochromatic

#041A18 #041A18 #0B403B #14746B #1DA89B

Accessibility & contrast

On white

11.60

#0B403B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#0B403B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B403B

11.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B403B	#FFFFFF	#000000	##FFFFFF
##0B403B	1.00	11.60	1.81	11.60
#FFFFFF	11.60	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C3C3B

Deuteranopia (green-blind)

#35363C

Tritanopia (blue-blind)

#00423E

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #0b403b;
/* rgb */ color: rgb(11, 64, 59);
/* oklch */ color: oklch(33.7% 0.054 185.6);

Tailwind

colors: {
  custom: {
    50: '#547570',
    500: '#0b403b',
    950: '#000000',
  },
}

SCSS

$custom: #0b403b;
$custom-light: #547570;
$custom-dark: #000000;

JSON

{
  "hex": "#0b403b",
  "rgb": {
    "r": 11,
    "g": 64,
    "b": 59
  },
  "hsl": {
    "h": 174.34,
    "s": 70.667,
    "l": 14.706
  },
  "oklch": {
    "l": 0.33689,
    "c": 0.05372,
    "h": 185.6
  },
  "luminance": 0.04054
}

Semantic roles & 50–950 ramp

primary

#0B403B

secondary

#7D2A32

accent

#3A4BED

background

#F5F7F6

surface

#E9EDEC

border

#C5C8C7

text

#030807

muted

#787B7A

Preview Lab

Preview with #0B403B

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

Preview Lab → · Contrast checker → · Palette generator →