#15247B#15247B

#15247B is a dark, vivid blue. Relative luminance 0.029; OKLCH L 31.7% C 0.147 H 268.2°. Best body text is #FFFFFF at 13.37:1 contrast (WCAG AA passes).

Color values

HEX	#15247B
RGB	rgb(21, 36, 123)
HSL	hsl(231, 71%, 28%)
HSV	hsv(231, 83%, 48%)
CMYK	cmyk(82.9%, 70.7%, 0%, 51.8%)
CIE-LAB	lab(19.44, 28.33, -50.76)
CIE-LCH	lch(19.44, 58.13, 299.17°)
OKLab	oklab(31.68% -0.0045 -0.147)
OKLCH	oklch(31.68% 0.147 268.2)
XYZ	xyz(4.5140, 2.8507, 19.0474)
Luminance	0.0285 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15247B #7B6C15

analogous

#15577B #15247B #39157B

triadic

#15247B #7B1524 #247B15

tetradic

#15247B #7B1557 #7B6C15 #157B39

square

#15247B #7B1557 #7B6C15 #157B39

split-complementary

#15247B #7B3915 #577B15

monochromatic

#04081A #0C1547 #15247B #1E33AF #2F48DB

Accessibility & contrast

On white

13.37

#15247B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#15247B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15247B

13.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15247B	#FFFFFF	#000000	##FFFFFF
##15247B	1.00	13.37	1.57	13.37
#FFFFFF	13.37	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00347E

Deuteranopia (green-blind)

#002A79

Tritanopia (blue-blind)

#003C4C

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #15247b;
/* rgb */ color: rgb(21, 36, 123);
/* oklch */ color: oklch(31.7% 0.147 268.2);

Tailwind

colors: {
  custom: {
    50: '#665fa2',
    500: '#15247b',
    950: '#000000',
  },
}

SCSS

$custom: #15247b;
$custom-light: #665fa2;
$custom-dark: #000000;

JSON

{
  "hex": "#15247b",
  "rgb": {
    "r": 21,
    "g": 36,
    "b": 123
  },
  "hsl": {
    "h": 231.176,
    "s": 70.833,
    "l": 28.235
  },
  "oklch": {
    "l": 0.31684,
    "c": 0.14709,
    "h": 268.2
  },
  "luminance": 0.02851
}

Semantic roles & 50–950 ramp

primary

#15247B

secondary

#B09F3B

accent

#D33AEE

background

#F6F5FA

surface

#EBE9F4

border

#C6C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #15247B

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

Preview Lab → · Contrast checker → · Palette generator →