#15337E#15337E

#15337E is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.0% C 0.132 H 264.1°. Best body text is #FFFFFF at 11.62:1 contrast (WCAG AA passes).

Color values

HEX	#15337E
RGB	rgb(21, 51, 126)
HSL	hsl(223, 71%, 29%)
HSV	hsv(223, 83%, 49%)
CMYK	cmyk(83.3%, 59.5%, 0%, 50.6%)
CIE-LAB	lab(23.78, 19.05, -45.55)
CIE-LCH	lch(23.78, 49.37, 292.69°)
OKLab	oklab(34.99% -0.0135 -0.1316)
OKLCH	oklch(34.99% 0.132 264.1)
XYZ	xyz(5.2576, 4.0328, 20.2359)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15337E #7E6015

analogous

#15687E #15337E #2C157E

triadic

#15337E #7E1533 #337E15

tetradic

#15337E #7E1568 #7E6015 #157E2C

square

#15337E #7E1568 #7E6015 #157E2C

split-complementary

#15337E #7E2C15 #687E15

monochromatic

#040B1A #0C1E4A #15337E #1E48B2 #3162DD

Accessibility & contrast

On white

11.62

#15337E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#15337E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15337E

11.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15337E	#FFFFFF	#000000	##FFFFFF
##15337E	1.00	11.62	1.81	11.62
#FFFFFF	11.62	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E81

Deuteranopia (green-blind)

#00347D

Tritanopia (blue-blind)

#004653

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #15337e;
/* rgb */ color: rgb(21, 51, 126);
/* oklch */ color: oklch(35.0% 0.132 264.1);

Tailwind

colors: {
  custom: {
    50: '#666aa4',
    500: '#15337e',
    950: '#000000',
  },
}

SCSS

$custom: #15337e;
$custom-light: #666aa4;
$custom-dark: #000000;

JSON

{
  "hex": "#15337e",
  "rgb": {
    "r": 21,
    "g": 51,
    "b": 126
  },
  "hsl": {
    "h": 222.857,
    "s": 71.429,
    "l": 28.824
  },
  "oklch": {
    "l": 0.34985,
    "c": 0.13228,
    "h": 264.1
  },
  "luminance": 0.04033
}

Semantic roles & 50–950 ramp

primary

#15337E

secondary

#B3913C

accent

#BB3AEE

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #15337E

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

Preview Lab → · Contrast checker → · Palette generator →