#15355B#15355B

#15355B is a dark, moderate cyan. Relative luminance 0.035; OKLCH L 32.6% C 0.077 H 254.4°. Best body text is #FFFFFF at 12.41:1 contrast (WCAG AA passes).

Color values

HEX	#15355B
RGB	rgb(21, 53, 91)
HSL	hsl(213, 63%, 22%)
HSV	hsv(213, 77%, 36%)
CMYK	cmyk(76.9%, 41.8%, 0%, 64.3%)
CIE-LAB	lab(21.80, 2.93, -26.19)
CIE-LCH	lch(21.80, 26.35, 276.39°)
OKLab	oklab(32.64% -0.0208 -0.0746)
OKLCH	oklch(32.64% 0.077 254.4)
XYZ	xyz(3.4700, 3.4606, 10.3806)
Luminance	0.0346 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15355B #5B3B15

analogous

#15585B #15355B #18155B

triadic

#15355B #5B1535 #355B15

tetradic

#15355B #5B1558 #5B3B15 #155B18

square

#15355B #5B1558 #5B3B15 #155B18

split-complementary

#15355B #5B1815 #585B15

monochromatic

#060E19 #0A1829 #15355B #20528D #2C6FBE

Accessibility & contrast

On white

12.41

#15355B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#15355B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15355B

12.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15355B	#FFFFFF	#000000	##FFFFFF
##15355B	1.00	12.41	1.69	12.41
#FFFFFF	12.41	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23385D

Deuteranopia (green-blind)

#19315A

Tritanopia (blue-blind)

#003E43

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #15355b;
/* rgb */ color: rgb(21, 53, 91);
/* oklch */ color: oklch(32.6% 0.077 254.4);

Tailwind

colors: {
  custom: {
    50: '#5d6b89',
    500: '#15355b',
    950: '#000000',
  },
}

SCSS

$custom: #15355b;
$custom-light: #5d6b89;
$custom-dark: #000000;

JSON

{
  "hex": "#15355b",
  "rgb": {
    "r": 21,
    "g": 53,
    "b": 91
  },
  "hsl": {
    "h": 212.571,
    "s": 62.5,
    "l": 21.961
  },
  "oklch": {
    "l": 0.32644,
    "c": 0.07748,
    "h": 254.4
  },
  "luminance": 0.03461
}

Semantic roles & 50–950 ramp

primary

#15355B

secondary

#926A39

accent

#9B42E6

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#05060B

muted

#797A7C

Preview Lab

Preview with #15355B

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

Preview Lab → · Contrast checker → · Palette generator →