#15378F#15378F

#15378F is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.4% C 0.151 H 264.2°. Best body text is #FFFFFF at 10.63:1 contrast (WCAG AA passes).

Color values

HEX	#15378F
RGB	rgb(21, 55, 143)
HSL	hsl(223, 74%, 32%)
HSV	hsv(223, 85%, 56%)
CMYK	cmyk(85.3%, 61.5%, 0%, 43.9%)
CIE-LAB	lab(26.37, 23.20, -51.93)
CIE-LCH	lch(26.37, 56.87, 294.07°)
OKLab	oklab(37.39% -0.0153 -0.1502)
OKLCH	oklch(37.39% 0.151 264.2)
XYZ	xyz(6.6316, 4.8742, 26.5726)
Luminance	0.0488 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15378F #8F6D15

analogous

#15748F #15378F #30158F

triadic

#15378F #8F1537 #378F15

tetradic

#15378F #8F1574 #8F6D15 #158F30

square

#15378F #8F1574 #8F6D15 #158F30

split-complementary

#15378F #8F3015 #748F15

monochromatic

#050E24 #0D225A #15378F #1D4CC4 #3C6AE2

Accessibility & contrast

On white

10.63

#15378F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#15378F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15378F

10.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15378F	#FFFFFF	#000000	##FFFFFF
##15378F	1.00	10.63	1.98	10.63
#FFFFFF	10.63	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004492

Deuteranopia (green-blind)

#00398D

Tritanopia (blue-blind)

#004E5D

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #15378f;
/* rgb */ color: rgb(21, 55, 143);
/* oklch */ color: oklch(37.4% 0.151 264.2);

Tailwind

colors: {
  custom: {
    50: '#6a6db1',
    500: '#15378f',
    950: '#000000',
  },
}

SCSS

$custom: #15378f;
$custom-light: #6a6db1;
$custom-dark: #000000;

JSON

{
  "hex": "#15378f",
  "rgb": {
    "r": 21,
    "g": 55,
    "b": 143
  },
  "hsl": {
    "h": 223.279,
    "s": 74.39,
    "l": 32.157
  },
  "oklch": {
    "l": 0.37385,
    "c": 0.15102,
    "h": 264.2
  },
  "luminance": 0.04875
}

Semantic roles & 50–950 ramp

primary

#15378F

secondary

#C29D3E

accent

#BD37F1

background

#F6F6FB

surface

#ECEBF6

border

#C7C6D0

text

#080711

muted

#7A7A80

Preview Lab

Preview with #15378F

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

Preview Lab → · Contrast checker → · Palette generator →