#15307D#15307D

#15307D is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.3% C 0.135 H 265.1°. Best body text is #FFFFFF at 11.99:1 contrast (WCAG AA passes).

Color values

HEX	#15307D
RGB	rgb(21, 48, 125)
HSL	hsl(224, 71%, 29%)
HSV	hsv(224, 83%, 49%)
CMYK	cmyk(83.2%, 61.6%, 0%, 51%)
CIE-LAB	lab(22.84, 20.77, -46.45)
CIE-LCH	lch(22.84, 50.88, 294.09°)
OKLab	oklab(34.25% -0.0115 -0.1343)
OKLCH	oklch(34.25% 0.135 265.1)
XYZ	xyz(5.0666, 3.7534, 19.8555)
Luminance	0.0375 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15307D #7D6215

analogous

#15647D #15307D #2E157D

triadic

#15307D #7D1530 #307D15

tetradic

#15307D #7D1564 #7D6215 #157D2E

square

#15307D #7D1564 #7D6215 #157D2E

split-complementary

#15307D #7D2E15 #647D15

monochromatic

#040A1A #0C1C49 #15307D #1E44B1 #305DDC

Accessibility & contrast

On white

11.99

#15307D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#15307D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15307D

11.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15307D	#FFFFFF	#000000	##FFFFFF
##15307D	1.00	11.99	1.75	11.99
#FFFFFF	11.99	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	11.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B80

Deuteranopia (green-blind)

#00327C

Tritanopia (blue-blind)

#004451

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #15307d;
/* rgb */ color: rgb(21, 48, 125);
/* oklch */ color: oklch(34.3% 0.135 265.1);

Tailwind

colors: {
  custom: {
    50: '#6667a3',
    500: '#15307d',
    950: '#000000',
  },
}

SCSS

$custom: #15307d;
$custom-light: #6667a3;
$custom-dark: #000000;

JSON

{
  "hex": "#15307d",
  "rgb": {
    "r": 21,
    "g": 48,
    "b": 125
  },
  "hsl": {
    "h": 224.423,
    "s": 71.233,
    "l": 28.627
  },
  "oklch": {
    "l": 0.34253,
    "c": 0.13479,
    "h": 265.1
  },
  "luminance": 0.03754
}

Semantic roles & 50–950 ramp

primary

#15307D

secondary

#B2933C

accent

#BF3AEE

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #15307D

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

Preview Lab → · Contrast checker → · Palette generator →