#15577E#15577E

#15577E is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 43.7% C 0.090 H 240.3°. Best body text is #FFFFFF at 7.79:1 contrast (WCAG AA passes).

Color values

HEX	#15577E
RGB	rgb(21, 87, 126)
HSL	hsl(202, 71%, 29%)
HSV	hsv(202, 83%, 49%)
CMYK	cmyk(83.3%, 31%, 0%, 50.6%)
CIE-LAB	lab(34.97, -5.39, -27.64)
CIE-LCH	lch(34.97, 28.16, 258.96°)
OKLab	oklab(43.66% -0.0446 -0.0783)
OKLCH	oklch(43.66% 0.09 240.3)
XYZ	xyz(7.4819, 8.4813, 20.9773)
Luminance	0.0848 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15577E #7E3C15

analogous

#157E71 #15577E #15227E

triadic

#15577E #7E1557 #577E15

tetradic

#15577E #71157E #7E3C15 #227E15

square

#15577E #71157E #7E3C15 #227E15

split-complementary

#15577E #7E1522 #7E7115

monochromatic

#04121A #0C334A #15577E #1E7BB2 #319DDD

Accessibility & contrast

On white

7.79

#15577E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#15577E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15577E

7.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15577E	#FFFFFF	#000000	##FFFFFF
##15577E	1.00	7.79	2.70	7.79
#FFFFFF	7.79	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#455880

Deuteranopia (green-blind)

#364E7D

Tritanopia (blue-blind)

#006165

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #15577e;
/* rgb */ color: rgb(21, 87, 126);
/* oklch */ color: oklch(43.7% 0.090 240.3);

Tailwind

colors: {
  custom: {
    50: '#6586a3',
    500: '#15577e',
    950: '#000000',
  },
}

SCSS

$custom: #15577e;
$custom-light: #6586a3;
$custom-dark: #000000;

JSON

{
  "hex": "#15577e",
  "rgb": {
    "r": 21,
    "g": 87,
    "b": 126
  },
  "hsl": {
    "h": 202.286,
    "s": 71.429,
    "l": 28.824
  },
  "oklch": {
    "l": 0.43655,
    "c": 0.09015,
    "h": 240.3
  },
  "luminance": 0.08482
}

Semantic roles & 50–950 ramp

primary

#15577E

secondary

#B3683C

accent

#7D3AEE

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #15577E

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

Preview Lab → · Contrast checker → · Palette generator →