#15587C#15587C

#15587C is a dark, moderate cyan. Relative luminance 0.086; OKLCH L 43.8% C 0.087 H 237.8°. Best body text is #FFFFFF at 7.72:1 contrast (WCAG AA passes).

Color values

HEX	#15587C
RGB	rgb(21, 88, 124)
HSL	hsl(201, 71%, 28%)
HSV	hsv(201, 83%, 49%)
CMYK	cmyk(83.1%, 29%, 0%, 51.4%)
CIE-LAB	lab(35.19, -6.80, -26.06)
CIE-LCH	lch(35.19, 26.93, 255.38°)
OKLab	oklab(43.8% -0.0463 -0.0737)
OKLCH	oklch(43.8% 0.087 237.8)
XYZ	xyz(7.4356, 8.5932, 20.3316)
Luminance	0.0859 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15587C #7C3915

analogous

#157C6C #15587C #15247C

triadic

#15587C #7C1558 #587C15

tetradic

#15587C #6C157C #7C3915 #247C15

square

#15587C #6C157C #7C3915 #247C15

split-complementary

#15587C #7C1524 #7C6C15

monochromatic

#04131A #0C3348 #15587C #1E7DB0 #30A0DC

Accessibility & contrast

On white

7.72

#15587C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#15587C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15587C

7.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15587C	#FFFFFF	#000000	##FFFFFF
##15587C	1.00	7.72	2.72	7.72
#FFFFFF	7.72	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47587E

Deuteranopia (green-blind)

#394F7B

Tritanopia (blue-blind)

#006164

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #15587c;
/* rgb */ color: rgb(21, 88, 124);
/* oklch */ color: oklch(43.8% 0.087 237.8);

Tailwind

colors: {
  custom: {
    50: '#6587a2',
    500: '#15587c',
    950: '#000000',
  },
}

SCSS

$custom: #15587c;
$custom-light: #6587a2;
$custom-dark: #000000;

JSON

{
  "hex": "#15587c",
  "rgb": {
    "r": 21,
    "g": 88,
    "b": 124
  },
  "hsl": {
    "h": 200.971,
    "s": 71.034,
    "l": 28.431
  },
  "oklch": {
    "l": 0.43798,
    "c": 0.08706,
    "h": 237.8
  },
  "luminance": 0.08594
}

Semantic roles & 50–950 ramp

primary

#15587C

secondary

#B1653C

accent

#793AEE

background

#F6F8FA

surface

#EBEFF3

border

#C6CACD

text

#060B0F

muted

#7A7C7F

Preview Lab

Preview with #15587C

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

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