#15375B#15375B

#15375B is a dark, moderate cyan. Relative luminance 0.036; OKLCH L 33.2% C 0.075 H 252.2°. Best body text is #FFFFFF at 12.14:1 contrast (WCAG AA passes).

Color values

HEX	#15375B
RGB	rgb(21, 55, 91)
HSL	hsl(211, 63%, 22%)
HSV	hsv(211, 77%, 36%)
CMYK	cmyk(76.9%, 39.6%, 0%, 64.3%)
CIE-LAB	lab(22.47, 1.53, -25.13)
CIE-LCH	lch(22.47, 25.18, 273.49°)
OKLab	oklab(33.16% -0.023 -0.0715)
OKLCH	oklch(33.16% 0.075 252.2)
XYZ	xyz(3.5631, 3.6467, 10.4116)
Luminance	0.0365 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15375B #5B3915

analogous

#155A5B #15375B #16155B

triadic

#15375B #5B1537 #375B15

tetradic

#15375B #5B155A #5B3915 #155B16

square

#15375B #5B155A #5B3915 #155B16

split-complementary

#15375B #5B1615 #5A5B15

monochromatic

#060F19 #0A1929 #15375B #20558D #2C73BE

Accessibility & contrast

On white

12.14

#15375B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#15375B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15375B

12.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15375B	#FFFFFF	#000000	##FFFFFF
##15375B	1.00	12.14	1.73	12.14
#FFFFFF	12.14	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27395C

Deuteranopia (green-blind)

#1C335A

Tritanopia (blue-blind)

#003F44

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #15375b;
/* rgb */ color: rgb(21, 55, 91);
/* oklch */ color: oklch(33.2% 0.075 252.2);

Tailwind

colors: {
  custom: {
    50: '#5d6d89',
    500: '#15375b',
    950: '#000000',
  },
}

SCSS

$custom: #15375b;
$custom-light: #5d6d89;
$custom-dark: #000000;

JSON

{
  "hex": "#15375b",
  "rgb": {
    "r": 21,
    "g": 55,
    "b": 91
  },
  "hsl": {
    "h": 210.857,
    "s": 62.5,
    "l": 21.961
  },
  "oklch": {
    "l": 0.33164,
    "c": 0.07511,
    "h": 252.2
  },
  "luminance": 0.03647
}

Semantic roles & 50–950 ramp

primary

#15375B

secondary

#926739

accent

#9642E6

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#05070B

muted

#797A7C

Preview Lab

Preview with #15375B

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

Preview Lab → · Contrast checker → · Palette generator →