#15337F#15337F

#15337F is a dark, vivid blue. Relative luminance 0.041; OKLCH L 35.1% C 0.134 H 264.2°. Best body text is #FFFFFF at 11.59:1 contrast (WCAG AA passes).

Color values

HEX	#15337F
RGB	rgb(21, 51, 127)
HSL	hsl(223, 72%, 29%)
HSV	hsv(223, 83%, 50%)
CMYK	cmyk(83.5%, 59.8%, 0%, 50.2%)
CIE-LAB	lab(23.86, 19.46, -46.04)
CIE-LCH	lch(23.86, 49.98, 292.91°)
OKLab	oklab(35.08% -0.0135 -0.133)
OKLCH	oklch(35.08% 0.134 264.2)
XYZ	xyz(5.3225, 4.0588, 20.5775)
Luminance	0.0406 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15337F #7F6115

analogous

#15687F #15337F #2C157F

triadic

#15337F #7F1533 #337F15

tetradic

#15337F #7F1568 #7F6115 #157F2C

square

#15337F #7F1568 #7F6115 #157F2C

split-complementary

#15337F #7F2C15 #687F15

monochromatic

#040B1A #0C1E4A #15337F #1E48B4 #3162DD

Accessibility & contrast

On white

11.59

#15337F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#15337F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15337F

11.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15337F	#FFFFFF	#000000	##FFFFFF
##15337F	1.00	11.59	1.81	11.59
#FFFFFF	11.59	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E82

Deuteranopia (green-blind)

#00347E

Tritanopia (blue-blind)

#004653

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #15337f;
/* rgb */ color: rgb(21, 51, 127);
/* oklch */ color: oklch(35.1% 0.134 264.2);

Tailwind

colors: {
  custom: {
    50: '#666aa5',
    500: '#15337f',
    950: '#000000',
  },
}

SCSS

$custom: #15337f;
$custom-light: #666aa5;
$custom-dark: #000000;

JSON

{
  "hex": "#15337f",
  "rgb": {
    "r": 21,
    "g": 51,
    "b": 127
  },
  "hsl": {
    "h": 223.019,
    "s": 71.622,
    "l": 29.02
  },
  "oklch": {
    "l": 0.35075,
    "c": 0.13372,
    "h": 264.2
  },
  "luminance": 0.04059
}

Semantic roles & 50–950 ramp

primary

#15337F

secondary

#B4923C

accent

#BB39EE

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #15337F

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

Preview Lab → · Contrast checker → · Palette generator →