#15366C#15366C

#15366C is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.2% C 0.102 H 259.8°. Best body text is #FFFFFF at 11.82:1 contrast (WCAG AA passes).

Color values

HEX	#15366C
RGB	rgb(21, 54, 108)
HSL	hsl(217, 67%, 25%)
HSV	hsv(217, 81%, 42%)
CMYK	cmyk(80.6%, 50%, 0%, 57.6%)
CIE-LAB	lab(23.27, 9.36, -34.90)
CIE-LCH	lch(23.27, 36.14, 285.01°)
OKLab	oklab(34.15% -0.018 -0.1002)
OKLCH	oklch(34.15% 0.102 259.8)
XYZ	xyz(4.3342, 3.8800, 14.7049)
Luminance	0.0388 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15366C #6C4B15

analogous

#15626C #15366C #1F156C

triadic

#15366C #6C1536 #366C15

tetradic

#15366C #6C1562 #6C4B15 #156C1F

square

#15366C #6C1562 #6C4B15 #156C1F

split-complementary

#15366C #6C1F15 #626C15

monochromatic

#050D1A #0B1C39 #15366C #1F509F #2969D2

Accessibility & contrast

On white

11.82

#15366C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#15366C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15366C

11.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15366C	#FFFFFF	#000000	##FFFFFF
##15366C	1.00	11.82	1.78	11.82
#FFFFFF	11.82	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#183C6E

Deuteranopia (green-blind)

#01346B

Tritanopia (blue-blind)

#00434B

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #15366c;
/* rgb */ color: rgb(21, 54, 108);
/* oklch */ color: oklch(34.2% 0.102 259.8);

Tailwind

colors: {
  custom: {
    50: '#616c96',
    500: '#15366c',
    950: '#000000',
  },
}

SCSS

$custom: #15366c;
$custom-light: #616c96;
$custom-dark: #000000;

JSON

{
  "hex": "#15366c",
  "rgb": {
    "r": 21,
    "g": 54,
    "b": 108
  },
  "hsl": {
    "h": 217.241,
    "s": 67.442,
    "l": 25.294
  },
  "oklch": {
    "l": 0.34151,
    "c": 0.10182,
    "h": 259.8
  },
  "luminance": 0.0388
}

Semantic roles & 50–950 ramp

primary

#15366C

secondary

#A37B3A

accent

#A93DEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #15366C

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

Preview Lab → · Contrast checker → · Palette generator →