#15316E#15316E

#15316E is a dark, moderate blue. Relative luminance 0.035; OKLCH L 33.1% C 0.112 H 263.1°. Best body text is #FFFFFF at 12.38:1 contrast (WCAG AA passes).

Color values

HEX	#15316E
RGB	rgb(21, 49, 110)
HSL	hsl(221, 68%, 26%)
HSV	hsv(221, 81%, 43%)
CMYK	cmyk(80.9%, 55.5%, 0%, 56.9%)
CIE-LAB	lab(21.88, 13.80, -38.44)
CIE-LCH	lch(21.88, 40.84, 289.75°)
OKLab	oklab(33.13% -0.0133 -0.1107)
OKLCH	oklch(33.13% 0.112 263.1)
XYZ	xyz(4.2210, 3.4814, 15.1983)
Luminance	0.0348 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15316E #6E5215

analogous

#155D6E #15316E #26156E

triadic

#15316E #6E1531 #316E15

tetradic

#15316E #6E155D #6E5215 #156E26

square

#15316E #6E155D #6E5215 #156E26

split-complementary

#15316E #6E2615 #5D6E15

monochromatic

#050B1A #0B1A3B #15316E #1F48A1 #295FD5

Accessibility & contrast

On white

12.38

#15316E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#15316E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15316E

12.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15316E	#FFFFFF	#000000	##FFFFFF
##15316E	1.00	12.38	1.70	12.38
#FFFFFF	12.38	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#053970

Deuteranopia (green-blind)

#00316D

Tritanopia (blue-blind)

#00404A

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #15316e;
/* rgb */ color: rgb(21, 49, 110);
/* oklch */ color: oklch(33.1% 0.112 263.1);

Tailwind

colors: {
  custom: {
    50: '#626898',
    500: '#15316e',
    950: '#000000',
  },
}

SCSS

$custom: #15316e;
$custom-light: #626898;
$custom-dark: #000000;

JSON

{
  "hex": "#15316e",
  "rgb": {
    "r": 21,
    "g": 49,
    "b": 110
  },
  "hsl": {
    "h": 221.124,
    "s": 67.939,
    "l": 25.686
  },
  "oklch": {
    "l": 0.33134,
    "c": 0.11154,
    "h": 263.1
  },
  "luminance": 0.03482
}

Semantic roles & 50–950 ramp

primary

#15316E

secondary

#A4833A

accent

#B43DEB

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #15316E

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

Preview Lab → · Contrast checker → · Palette generator →