#15388E#15388E

#15388E is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.5% C 0.148 H 263.8°. Best body text is #FFFFFF at 10.56:1 contrast (WCAG AA passes).

Color values

HEX	#15388E
RGB	rgb(21, 56, 142)
HSL	hsl(223, 74%, 32%)
HSV	hsv(223, 85%, 56%)
CMYK	cmyk(85.2%, 60.6%, 0%, 44.3%)
CIE-LAB	lab(26.56, 22.09, -51.00)
CIE-LCH	lch(26.56, 55.58, 293.42°)
OKLab	oklab(37.5% -0.016 -0.1475)
OKLCH	oklch(37.5% 0.148 263.8)
XYZ	xyz(6.6042, 4.9400, 26.1914)
Luminance	0.0494 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15388E #8E6B15

analogous

#15748E #15388E #2F158E

triadic

#15388E #8E1538 #388E15

tetradic

#15388E #8E1574 #8E6B15 #158E2F

square

#15388E #8E1574 #8E6B15 #158E2F

split-complementary

#15388E #8E2F15 #748E15

monochromatic

#050E23 #0D2359 #15388E #1D4DC3 #3B6CE2

Accessibility & contrast

On white

10.56

#15388E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#15388E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15388E

10.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15388E	#FFFFFF	#000000	##FFFFFF
##15388E	1.00	10.56	1.99	10.56
#FFFFFF	10.56	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004591

Deuteranopia (green-blind)

#00398C

Tritanopia (blue-blind)

#004E5D

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #15388e;
/* rgb */ color: rgb(21, 56, 142);
/* oklch */ color: oklch(37.5% 0.148 263.8);

Tailwind

colors: {
  custom: {
    50: '#6a6eb0',
    500: '#15388e',
    950: '#000000',
  },
}

SCSS

$custom: #15388e;
$custom-light: #6a6eb0;
$custom-dark: #000000;

JSON

{
  "hex": "#15388e",
  "rgb": {
    "r": 21,
    "g": 56,
    "b": 142
  },
  "hsl": {
    "h": 222.645,
    "s": 74.233,
    "l": 31.961
  },
  "oklch": {
    "l": 0.375,
    "c": 0.14836,
    "h": 263.8
  },
  "luminance": 0.04941
}

Semantic roles & 50–950 ramp

primary

#15388E

secondary

#C29B3D

accent

#BB37F1

background

#F6F6FA

surface

#ECEBF5

border

#C7C6CF

text

#080711

muted

#7A7A80

Preview Lab

Preview with #15388E

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

Preview Lab → · Contrast checker → · Palette generator →