#15596B#15596B

#15596B is a dark, moderate cyan. Relative luminance 0.084; OKLCH L 43.2% C 0.071 H 220.0°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#15596B
RGB	rgb(21, 89, 107)
HSL	hsl(193, 67%, 25%)
HSV	hsv(193, 80%, 42%)
CMYK	cmyk(80.4%, 16.8%, 0%, 58%)
CIE-LAB	lab(34.73, -13.84, -16.23)
CIE-LCH	lch(34.73, 21.33, 229.54°)
OKLab	oklab(43.17% -0.0541 -0.0454)
OKLCH	oklch(43.17% 0.071 220)
XYZ	xyz(6.5344, 8.3649, 15.1773)
Luminance	0.0837 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15596B #6B2715

analogous

#156B52 #15596B #152E6B

triadic

#15596B #6B1559 #596B15

tetradic

#15596B #52156B #6B2715 #2E6B15

square

#15596B #52156B #6B2715 #2E6B15

split-complementary

#15596B #6B152E #6B5215

monochromatic

#05151A #0B2E38 #15596B #1F849E #29AED1

Accessibility & contrast

On white

7.86

#15596B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#15596B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15596B

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15596B	#FFFFFF	#000000	##FFFFFF
##15596B	1.00	7.86	2.67	7.86
#FFFFFF	7.86	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E566C

Deuteranopia (green-blind)

#424E6B

Tritanopia (blue-blind)

#005F5F

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #15596b;
/* rgb */ color: rgb(21, 89, 107);
/* oklch */ color: oklch(43.2% 0.071 220.0);

Tailwind

colors: {
  custom: {
    50: '#628895',
    500: '#15596b',
    950: '#000000',
  },
}

SCSS

$custom: #15596b;
$custom-light: #628895;
$custom-dark: #000000;

JSON

{
  "hex": "#15596b",
  "rgb": {
    "r": 21,
    "g": 89,
    "b": 107
  },
  "hsl": {
    "h": 192.558,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.43173,
    "c": 0.07063,
    "h": 220
  },
  "luminance": 0.08366
}

Semantic roles & 50–950 ramp

primary

#15596B

secondary

#A2503A

accent

#623EEA

background

#F6F8F9

surface

#EBEFF1

border

#C6CACB

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #15596B

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

Preview Lab → · Contrast checker → · Palette generator →