#15597C#15597C

#15597C is a dark, moderate cyan. Relative luminance 0.088; OKLCH L 44.1% C 0.086 H 236.8°. Best body text is #FFFFFF at 7.63:1 contrast (WCAG AA passes).

Color values

HEX	#15597C
RGB	rgb(21, 89, 124)
HSL	hsl(200, 71%, 28%)
HSV	hsv(200, 83%, 49%)
CMYK	cmyk(83.1%, 28.2%, 0%, 51.4%)
CIE-LAB	lab(35.52, -7.41, -25.55)
CIE-LCH	lch(35.52, 26.60, 253.82°)
OKLab	oklab(44.06% -0.0473 -0.0722)
OKLCH	oklch(44.06% 0.086 236.8)
XYZ	xyz(7.5183, 8.7585, 20.3592)
Luminance	0.0876 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15597C #7C3815

analogous

#157C6B #15597C #15267C

triadic

#15597C #7C1559 #597C15

tetradic

#15597C #6B157C #7C3815 #267C15

square

#15597C #6B157C #7C3815 #267C15

split-complementary

#15597C #7C1526 #7C6B15

monochromatic

#04131A #0C3348 #15597C #1E7FB0 #30A1DC

Accessibility & contrast

On white

7.63

#15597C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#15597C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15597C

7.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15597C	#FFFFFF	#000000	##FFFFFF
##15597C	1.00	7.63	2.75	7.63
#FFFFFF	7.63	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#48597E

Deuteranopia (green-blind)

#3A4F7B

Tritanopia (blue-blind)

#006265

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #15597c;
/* rgb */ color: rgb(21, 89, 124);
/* oklch */ color: oklch(44.1% 0.086 236.8);

Tailwind

colors: {
  custom: {
    50: '#6587a2',
    500: '#15597c',
    950: '#000000',
  },
}

SCSS

$custom: #15597c;
$custom-light: #6587a2;
$custom-dark: #000000;

JSON

{
  "hex": "#15597c",
  "rgb": {
    "r": 21,
    "g": 89,
    "b": 124
  },
  "hsl": {
    "h": 200.388,
    "s": 71.034,
    "l": 28.431
  },
  "oklch": {
    "l": 0.44058,
    "c": 0.08634,
    "h": 236.8
  },
  "luminance": 0.08759
}

Semantic roles & 50–950 ramp

primary

#15597C

secondary

#B1643C

accent

#773AEE

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0F

muted

#7A7C7E

Preview Lab

Preview with #15597C

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

Preview Lab → · Contrast checker → · Palette generator →