#03403B#03403B

#03403B is a dark, muted teal. Relative luminance 0.040; OKLCH L 33.5% C 0.057 H 186.0°. Best body text is #FFFFFF at 11.66:1 contrast (WCAG AA passes).

Color values

HEX	#03403B
RGB	rgb(3, 64, 59)
HSL	hsl(175, 91%, 13%)
HSV	hsv(175, 95%, 25%)
CMYK	cmyk(95.3%, 0%, 7.8%, 74.9%)
CIE-LAB	lab(23.68, -19.22, -2.09)
CIE-LCH	lch(23.68, 19.33, 186.21°)
OKLab	oklab(33.5% -0.0569 -0.006)
OKLCH	oklch(33.5% 0.057 186)
XYZ	xyz(2.6600, 4.0016, 4.7690)
Luminance	0.0400 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#03403B #400308

analogous

#03401C #03403B #032640

triadic

#03403B #3B0340 #403B03

tetradic

#03403B #1C0340 #400308 #264003

square

#03403B #1C0340 #400308 #264003

split-complementary

#03403B #400326 #401C03

monochromatic

#011D1B #011D1B #03403B #067A71 #08B5A7

Accessibility & contrast

On white

11.66

#03403B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#03403B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #03403B

11.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##03403B	#FFFFFF	#000000	##FFFFFF
##03403B	1.00	11.66	1.80	11.66
#FFFFFF	11.66	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C3C3B

Deuteranopia (green-blind)

#34363C

Tritanopia (blue-blind)

#00423E

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #03403b;
/* rgb */ color: rgb(3, 64, 59);
/* oklch */ color: oklch(33.5% 0.057 186.0);

Tailwind

colors: {
  custom: {
    50: '#527570',
    500: '#03403b',
    950: '#000000',
  },
}

SCSS

$custom: #03403b;
$custom-light: #527570;
$custom-dark: #000000;

JSON

{
  "hex": "#03403b",
  "rgb": {
    "r": 3,
    "g": 64,
    "b": 59
  },
  "hsl": {
    "h": 175.082,
    "s": 91.045,
    "l": 13.137
  },
  "oklch": {
    "l": 0.335,
    "c": 0.05724,
    "h": 186
  },
  "luminance": 0.04002
}

Semantic roles & 50–950 ramp

primary

#03403B

secondary

#821D25

accent

#293AFF

background

#F5F7F6

surface

#E8EDEC

border

#C4C8C7

text

#030807

muted

#787B7A

Preview Lab

Preview with #03403B

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

Preview Lab → · Contrast checker → · Palette generator →