#15388A#15388A

#15388A is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.1% C 0.143 H 263.5°. Best body text is #FFFFFF at 10.69:1 contrast (WCAG AA passes).

Color values

HEX	#15388A
RGB	rgb(21, 56, 138)
HSL	hsl(222, 74%, 31%)
HSV	hsv(222, 85%, 54%)
CMYK	cmyk(84.8%, 59.4%, 0%, 45.9%)
CIE-LAB	lab(26.22, 20.46, -49.08)
CIE-LCH	lch(26.22, 53.17, 292.63°)
OKLab	oklab(37.14% -0.0162 -0.1419)
OKLCH	oklch(37.14% 0.143 263.5)
XYZ	xyz(6.3092, 4.8220, 24.6380)
Luminance	0.0482 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15388A #8A6715

analogous

#15728A #15388A #2C158A

triadic

#15388A #8A1538 #388A15

tetradic

#15388A #8A1572 #8A6715 #158A2C

square

#15388A #8A1572 #8A6715 #158A2C

split-complementary

#15388A #8A2C15 #728A15

monochromatic

#050D20 #0D2255 #15388A #1D4EBF #396BE1

Accessibility & contrast

On white

10.69

#15388A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#15388A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15388A

10.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15388A	#FFFFFF	#000000	##FFFFFF
##15388A	1.00	10.69	1.96	10.69
#FFFFFF	10.69	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448D

Deuteranopia (green-blind)

#003988

Tritanopia (blue-blind)

#004D5B

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #15388a;
/* rgb */ color: rgb(21, 56, 138);
/* oklch */ color: oklch(37.1% 0.143 263.5);

Tailwind

colors: {
  custom: {
    50: '#696ead',
    500: '#15388a',
    950: '#000000',
  },
}

SCSS

$custom: #15388a;
$custom-light: #696ead;
$custom-dark: #000000;

JSON

{
  "hex": "#15388a",
  "rgb": {
    "r": 21,
    "g": 56,
    "b": 138
  },
  "hsl": {
    "h": 222.051,
    "s": 73.585,
    "l": 31.176
  },
  "oklch": {
    "l": 0.37137,
    "c": 0.14279,
    "h": 263.5
  },
  "luminance": 0.04823
}

Semantic roles & 50–950 ramp

primary

#15388A

secondary

#BE973D

accent

#B938F0

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #15388A

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

Preview Lab → · Contrast checker → · Palette generator →