#15597E#15597E

#15597E is a dark, moderate cyan. Relative luminance 0.088; OKLCH L 44.2% C 0.089 H 238.3°. Best body text is #FFFFFF at 7.60:1 contrast (WCAG AA passes).

Color values

HEX	#15597E
RGB	rgb(21, 89, 126)
HSL	hsl(201, 71%, 29%)
HSV	hsv(201, 83%, 49%)
CMYK	cmyk(83.3%, 29.4%, 0%, 50.6%)
CIE-LAB	lab(35.62, -6.64, -26.62)
CIE-LCH	lch(35.62, 27.44, 256.00°)
OKLab	oklab(44.17% -0.0466 -0.0753)
OKLCH	oklch(44.17% 0.089 238.3)
XYZ	xyz(7.6460, 8.8096, 21.0321)
Luminance	0.0881 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15597E #7E3A15

analogous

#157E6F #15597E #15257E

triadic

#15597E #7E1559 #597E15

tetradic

#15597E #6F157E #7E3A15 #257E15

square

#15597E #6F157E #7E3A15 #257E15

split-complementary

#15597E #7E1525 #7E6F15

monochromatic

#04131A #0C344A #15597E #1E7EB2 #31A0DD

Accessibility & contrast

On white

7.60

#15597E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#15597E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15597E

7.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15597E	#FFFFFF	#000000	##FFFFFF
##15597E	1.00	7.60	2.76	7.60
#FFFFFF	7.60	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#475980

Deuteranopia (green-blind)

#394F7D

Tritanopia (blue-blind)

#006266

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #15597e;
/* rgb */ color: rgb(21, 89, 126);
/* oklch */ color: oklch(44.2% 0.089 238.3);

Tailwind

colors: {
  custom: {
    50: '#6587a3',
    500: '#15597e',
    950: '#000000',
  },
}

SCSS

$custom: #15597e;
$custom-light: #6587a3;
$custom-dark: #000000;

JSON

{
  "hex": "#15597e",
  "rgb": {
    "r": 21,
    "g": 89,
    "b": 126
  },
  "hsl": {
    "h": 201.143,
    "s": 71.429,
    "l": 28.824
  },
  "oklch": {
    "l": 0.4417,
    "c": 0.08858,
    "h": 238.3
  },
  "luminance": 0.08811
}

Semantic roles & 50–950 ramp

primary

#15597E

secondary

#B3663C

accent

#793AEE

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #15597E

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

Preview Lab → · Contrast checker → · Palette generator →