#15577C#15577C

#15577C is a dark, moderate cyan. Relative luminance 0.084; OKLCH L 43.5% C 0.088 H 238.9°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#15577C
RGB	rgb(21, 87, 124)
HSL	hsl(202, 71%, 28%)
HSV	hsv(202, 83%, 49%)
CMYK	cmyk(83.1%, 29.8%, 0%, 51.4%)
CIE-LAB	lab(34.86, -6.18, -26.57)
CIE-LCH	lch(34.86, 27.28, 256.91°)
OKLab	oklab(43.54% -0.0453 -0.0752)
OKLCH	oklch(43.54% 0.088 238.9)
XYZ	xyz(7.3541, 8.4302, 20.3045)
Luminance	0.0843 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15577C #7C3A15

analogous

#157C6D #15577C #15247C

triadic

#15577C #7C1557 #577C15

tetradic

#15577C #6D157C #7C3A15 #247C15

square

#15577C #6D157C #7C3A15 #247C15

split-complementary

#15577C #7C1524 #7C6D15

monochromatic

#04121A #0C3248 #15577C #1E7CB0 #309EDC

Accessibility & contrast

On white

7.82

#15577C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#15577C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15577C

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15577C	#FFFFFF	#000000	##FFFFFF
##15577C	1.00	7.82	2.69	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#45577E

Deuteranopia (green-blind)

#374E7B

Tritanopia (blue-blind)

#006064

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #15577c;
/* rgb */ color: rgb(21, 87, 124);
/* oklch */ color: oklch(43.5% 0.088 238.9);

Tailwind

colors: {
  custom: {
    50: '#6586a2',
    500: '#15577c',
    950: '#000000',
  },
}

SCSS

$custom: #15577c;
$custom-light: #6586a2;
$custom-dark: #000000;

JSON

{
  "hex": "#15577c",
  "rgb": {
    "r": 21,
    "g": 87,
    "b": 124
  },
  "hsl": {
    "h": 201.553,
    "s": 71.034,
    "l": 28.431
  },
  "oklch": {
    "l": 0.4354,
    "c": 0.08781,
    "h": 238.9
  },
  "luminance": 0.08431
}

Semantic roles & 50–950 ramp

primary

#15577C

secondary

#B1663C

accent

#7B3AEE

background

#F6F8FA

surface

#EBEFF3

border

#C6CACD

text

#060B0F

muted

#7A7C7F

Preview Lab

Preview with #15577C

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

Preview Lab → · Contrast checker → · Palette generator →