#15306E#15306E

#15306E is a dark, moderate blue. Relative luminance 0.034; OKLCH L 32.9% C 0.113 H 263.6°. Best body text is #FFFFFF at 12.50:1 contrast (WCAG AA passes).

Color values

HEX	#15306E
RGB	rgb(21, 48, 110)
HSL	hsl(222, 68%, 26%)
HSV	hsv(222, 81%, 43%)
CMYK	cmyk(80.9%, 56.4%, 0%, 56.9%)
CIE-LAB	lab(21.57, 14.53, -38.93)
CIE-LCH	lch(21.57, 41.55, 290.46°)
OKLab	oklab(32.91% -0.0125 -0.1122)
OKLCH	oklch(32.91% 0.113 263.6)
XYZ	xyz(4.1797, 3.3986, 15.1845)
Luminance	0.0340 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15306E #6E5315

analogous

#155C6E #15306E #26156E

triadic

#15306E #6E1530 #306E15

tetradic

#15306E #6E155C #6E5315 #156E26

square

#15306E #6E155C #6E5315 #156E26

split-complementary

#15306E #6E2615 #5C6E15

monochromatic

#050B1A #0B1A3B #15306E #1F46A1 #295DD5

Accessibility & contrast

On white

12.50

#15306E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#15306E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15306E

12.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15306E	#FFFFFF	#000000	##FFFFFF
##15306E	1.00	12.50	1.68	12.50
#FFFFFF	12.50	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#013870

Deuteranopia (green-blind)

#00306D

Tritanopia (blue-blind)

#003F4A

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #15306e;
/* rgb */ color: rgb(21, 48, 110);
/* oklch */ color: oklch(32.9% 0.113 263.6);

Tailwind

colors: {
  custom: {
    50: '#626798',
    500: '#15306e',
    950: '#000000',
  },
}

SCSS

$custom: #15306e;
$custom-light: #626798;
$custom-dark: #000000;

JSON

{
  "hex": "#15306e",
  "rgb": {
    "r": 21,
    "g": 48,
    "b": 110
  },
  "hsl": {
    "h": 221.798,
    "s": 67.939,
    "l": 25.686
  },
  "oklch": {
    "l": 0.32905,
    "c": 0.1129,
    "h": 263.6
  },
  "luminance": 0.03399
}

Semantic roles & 50–950 ramp

primary

#15306E

secondary

#A4843A

accent

#B63DEB

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #15306E

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

Preview Lab → · Contrast checker → · Palette generator →