#15404D#15404D

#15404D is a dark, muted cyan. Relative luminance 0.044; OKLCH L 34.8% C 0.052 H 221.3°. Best body text is #FFFFFF at 11.22:1 contrast (WCAG AA passes).

Color values

HEX	#15404D
RGB	rgb(21, 64, 77)
HSL	hsl(194, 57%, 19%)
HSV	hsv(194, 73%, 30%)
CMYK	cmyk(72.7%, 16.9%, 0%, 69.8%)
CIE-LAB	lab(24.83, -9.95, -12.23)
CIE-LCH	lch(24.83, 15.76, 230.87°)
OKLab	oklab(34.8% -0.0388 -0.0341)
OKLCH	oklch(34.8% 0.052 221.3)
XYZ	xyz(3.4817, 4.3617, 7.6781)
Luminance	0.0436 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15404D #4D2215

analogous

#154D3E #15404D #15244D

triadic

#15404D #4D1540 #404D15

tetradic

#15404D #3E154D #4D2215 #244D15

square

#15404D #3E154D #4D2215 #244D15

split-complementary

#15404D #4D1524 #4D3E15

monochromatic

#071418 #08181D #15404D #22687D #2F90AD

Accessibility & contrast

On white

11.22

#15404D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#15404D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15404D

11.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15404D	#FFFFFF	#000000	##FFFFFF
##15404D	1.00	11.22	1.87	11.22
#FFFFFF	11.22	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383E4E

Deuteranopia (green-blind)

#30384D

Tritanopia (blue-blind)

#004444

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #15404d;
/* rgb */ color: rgb(21, 64, 77);
/* oklch */ color: oklch(34.8% 0.052 221.3);

Tailwind

colors: {
  custom: {
    50: '#5a747e',
    500: '#15404d',
    950: '#000000',
  },
}

SCSS

$custom: #15404d;
$custom-light: #5a747e;
$custom-dark: #000000;

JSON

{
  "hex": "#15404d",
  "rgb": {
    "r": 21,
    "g": 64,
    "b": 77
  },
  "hsl": {
    "h": 193.929,
    "s": 57.143,
    "l": 19.216
  },
  "oklch": {
    "l": 0.34798,
    "c": 0.05165,
    "h": 221.3
  },
  "luminance": 0.04362
}

Semantic roles & 50–950 ramp

primary

#15404D

secondary

#854B39

accent

#6B47E0

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #15404D

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

Preview Lab → · Contrast checker → · Palette generator →