#15378D#15378D

#15378D is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.2% C 0.148 H 264.0°. Best body text is #FFFFFF at 10.70:1 contrast (WCAG AA passes).

Color values

HEX	#15378D
RGB	rgb(21, 55, 141)
HSL	hsl(223, 74%, 32%)
HSV	hsv(223, 85%, 55%)
CMYK	cmyk(85.1%, 61%, 0%, 44.7%)
CIE-LAB	lab(26.20, 22.39, -50.98)
CIE-LCH	lch(26.20, 55.67, 293.71°)
OKLab	oklab(37.2% -0.0154 -0.1474)
OKLCH	oklch(37.2% 0.148 264)
XYZ	xyz(6.4815, 4.8141, 25.7817)
Luminance	0.0481 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15378D #8D6B15

analogous

#15738D #15378D #2F158D

triadic

#15378D #8D1537 #378D15

tetradic

#15378D #8D1573 #8D6B15 #158D2F

square

#15378D #8D1573 #8D6B15 #158D2F

split-complementary

#15378D #8D2F15 #738D15

monochromatic

#050D22 #0D2258 #15378D #1D4CC2 #3B6AE2

Accessibility & contrast

On white

10.70

#15378D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#15378D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15378D

10.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15378D	#FFFFFF	#000000	##FFFFFF
##15378D	1.00	10.70	1.96	10.70
#FFFFFF	10.70	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004490

Deuteranopia (green-blind)

#00398B

Tritanopia (blue-blind)

#004D5C

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #15378d;
/* rgb */ color: rgb(21, 55, 141);
/* oklch */ color: oklch(37.2% 0.148 264.0);

Tailwind

colors: {
  custom: {
    50: '#6a6daf',
    500: '#15378d',
    950: '#000000',
  },
}

SCSS

$custom: #15378d;
$custom-light: #6a6daf;
$custom-dark: #000000;

JSON

{
  "hex": "#15378d",
  "rgb": {
    "r": 21,
    "g": 55,
    "b": 141
  },
  "hsl": {
    "h": 223,
    "s": 74.074,
    "l": 31.765
  },
  "oklch": {
    "l": 0.372,
    "c": 0.14825,
    "h": 264
  },
  "luminance": 0.04815
}

Semantic roles & 50–950 ramp

primary

#15378D

secondary

#C19B3D

accent

#BC37F1

background

#F6F6FA

surface

#ECEBF5

border

#C7C6CF

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #15378D

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

Preview Lab → · Contrast checker → · Palette generator →