#15566B#15566B

#15566B is a dark, moderate cyan. Relative luminance 0.079; OKLCH L 42.4% C 0.071 H 224.4°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#15566B
RGB	rgb(21, 86, 107)
HSL	hsl(195, 67%, 25%)
HSV	hsv(195, 80%, 42%)
CMYK	cmyk(80.4%, 19.6%, 0%, 58%)
CIE-LAB	lab(33.72, -12.08, -17.78)
CIE-LCH	lch(33.72, 21.50, 235.81°)
OKLab	oklab(42.36% -0.0509 -0.0498)
OKLCH	oklch(42.36% 0.071 224.4)
XYZ	xyz(6.2898, 7.8758, 15.0957)
Luminance	0.0788 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15566B #6B2A15

analogous

#156B55 #15566B #152B6B

triadic

#15566B #6B1556 #566B15

tetradic

#15566B #55156B #6B2A15 #2B6B15

square

#15566B #55156B #6B2A15 #2B6B15

split-complementary

#15566B #6B152B #6B5515

monochromatic

#05151A #0B2D38 #15566B #1F7F9E #29A8D1

Accessibility & contrast

On white

8.15

#15566B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#15566B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15566B

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15566B	#FFFFFF	#000000	##FFFFFF
##15566B	1.00	8.15	2.58	8.15
#FFFFFF	8.15	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A546C

Deuteranopia (green-blind)

#3F4C6B

Tritanopia (blue-blind)

#005C5D

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #15566b;
/* rgb */ color: rgb(21, 86, 107);
/* oklch */ color: oklch(42.4% 0.071 224.4);

Tailwind

colors: {
  custom: {
    50: '#628595',
    500: '#15566b',
    950: '#000000',
  },
}

SCSS

$custom: #15566b;
$custom-light: #628595;
$custom-dark: #000000;

JSON

{
  "hex": "#15566b",
  "rgb": {
    "r": 21,
    "g": 86,
    "b": 107
  },
  "hsl": {
    "h": 194.651,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.42363,
    "c": 0.07122,
    "h": 224.4
  },
  "luminance": 0.07877
}

Semantic roles & 50–950 ramp

primary

#15566B

secondary

#A2533A

accent

#683EEA

background

#F6F8F9

surface

#EBEFF1

border

#C6CACB

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #15566B

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

Preview Lab → · Contrast checker → · Palette generator →