#15403B#15403B

#15403B is a dark, muted teal. Relative luminance 0.041; OKLCH L 34.0% C 0.048 H 184.7°. Best body text is #FFFFFF at 11.49:1 contrast (WCAG AA passes).

Color values

HEX	#15403B
RGB	rgb(21, 64, 59)
HSL	hsl(173, 51%, 17%)
HSV	hsv(173, 67%, 25%)
CMYK	cmyk(67.2%, 0%, 7.8%, 74.9%)
CIE-LAB	lab(24.13, -16.19, -1.36)
CIE-LCH	lch(24.13, 16.24, 184.82°)
OKLab	oklab(34% -0.0478 -0.0039)
OKLCH	oklch(34% 0.048 184.7)
XYZ	xyz(2.9317, 4.1417, 4.7817)
Luminance	0.0414 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15403B #40151A

analogous

#154026 #15403B #153040

triadic

#15403B #3B1540 #403B15

tetradic

#15403B #261540 #40151A #304015

square

#15403B #261540 #40151A #304015

split-complementary

#15403B #401530 #402615

monochromatic

#081715 #081715 #15403B #246E65 #339C90

Accessibility & contrast

On white

11.49

#15403B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#15403B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15403B

11.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15403B	#FFFFFF	#000000	##FFFFFF
##15403B	1.00	11.49	1.83	11.49
#FFFFFF	11.49	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D3C3B

Deuteranopia (green-blind)

#36373C

Tritanopia (blue-blind)

#00413E

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #15403b;
/* rgb */ color: rgb(21, 64, 59);
/* oklch */ color: oklch(34.0% 0.048 184.7);

Tailwind

colors: {
  custom: {
    50: '#587570',
    500: '#15403b',
    950: '#000000',
  },
}

SCSS

$custom: #15403b;
$custom-light: #587570;
$custom-dark: #000000;

JSON

{
  "hex": "#15403b",
  "rgb": {
    "r": 21,
    "g": 64,
    "b": 59
  },
  "hsl": {
    "h": 173.023,
    "s": 50.588,
    "l": 16.667
  },
  "oklch": {
    "l": 0.34004,
    "c": 0.04799,
    "h": 184.7
  },
  "luminance": 0.04142
}

Semantic roles & 50–950 ramp

primary

#15403B

secondary

#783940

accent

#4E5EDA

background

#F5F7F6

surface

#E9EDEC

border

#C5C8C7

text

#040807

muted

#797B7A

Preview Lab

Preview with #15403B

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

Preview Lab → · Contrast checker → · Palette generator →