#15306C#15306C

#15306C is a dark, moderate blue. Relative luminance 0.034; OKLCH L 32.7% C 0.110 H 263.3°. Best body text is #FFFFFF at 12.57:1 contrast (WCAG AA passes).

Color values

HEX	#15306C
RGB	rgb(21, 48, 108)
HSL	hsl(221, 67%, 25%)
HSV	hsv(221, 81%, 42%)
CMYK	cmyk(80.6%, 55.6%, 0%, 57.6%)
CIE-LAB	lab(21.42, 13.68, -37.90)
CIE-LCH	lch(21.42, 40.29, 289.85°)
OKLab	oklab(32.73% -0.0127 -0.1092)
OKLCH	oklch(32.73% 0.11 263.3)
XYZ	xyz(4.0720, 3.3556, 14.6175)
Luminance	0.0336 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15306C #6C5115

analogous

#155C6C #15306C #25156C

triadic

#15306C #6C1530 #306C15

tetradic

#15306C #6C155C #6C5115 #156C25

square

#15306C #6C155C #6C5115 #156C25

split-complementary

#15306C #6C2515 #5C6C15

monochromatic

#050B1A #0B1939 #15306C #1F479F #295ED2

Accessibility & contrast

On white

12.57

#15306C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#15306C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15306C

12.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15306C	#FFFFFF	#000000	##FFFFFF
##15306C	1.00	12.57	1.67	12.57
#FFFFFF	12.57	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#05386E

Deuteranopia (green-blind)

#00306B

Tritanopia (blue-blind)

#003F49

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #15306c;
/* rgb */ color: rgb(21, 48, 108);
/* oklch */ color: oklch(32.7% 0.110 263.3);

Tailwind

colors: {
  custom: {
    50: '#616797',
    500: '#15306c',
    950: '#000000',
  },
}

SCSS

$custom: #15306c;
$custom-light: #616797;
$custom-dark: #000000;

JSON

{
  "hex": "#15306c",
  "rgb": {
    "r": 21,
    "g": 48,
    "b": 108
  },
  "hsl": {
    "h": 221.379,
    "s": 67.442,
    "l": 25.294
  },
  "oklch": {
    "l": 0.32733,
    "c": 0.1099,
    "h": 263.3
  },
  "luminance": 0.03356
}

Semantic roles & 50–950 ramp

primary

#15306C

secondary

#A3823A

accent

#B53DEA

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #15306C

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

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