#15337A#15337A

#15337A is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.6% C 0.127 H 263.7°. Best body text is #FFFFFF at 11.76:1 contrast (WCAG AA passes).

Color values

HEX	#15337A
RGB	rgb(21, 51, 122)
HSL	hsl(222, 71%, 28%)
HSV	hsv(222, 83%, 48%)
CMYK	cmyk(82.8%, 58.2%, 0%, 52.2%)
CIE-LAB	lab(23.44, 17.39, -43.57)
CIE-LCH	lch(23.44, 46.91, 291.76°)
OKLab	oklab(34.63% -0.0138 -0.1258)
OKLCH	oklch(34.63% 0.127 263.7)
XYZ	xyz(5.0047, 3.9316, 18.9037)
Luminance	0.0393 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15337A #7A5C15

analogous

#15657A #15337A #29157A

triadic

#15337A #7A1533 #337A15

tetradic

#15337A #7A1565 #7A5C15 #157A29

square

#15337A #7A1565 #7A5C15 #157A29

split-complementary

#15337A #7A2915 #657A15

monochromatic

#040B1A #0C1D46 #15337A #1E49AE #2E62DB

Accessibility & contrast

On white

11.76

#15337A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#15337A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15337A

11.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15337A	#FFFFFF	#000000	##FFFFFF
##15337A	1.00	11.76	1.79	11.76
#FFFFFF	11.76	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D7C

Deuteranopia (green-blind)

#003379

Tritanopia (blue-blind)

#004551

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #15337a;
/* rgb */ color: rgb(21, 51, 122);
/* oklch */ color: oklch(34.6% 0.127 263.7);

Tailwind

colors: {
  custom: {
    50: '#656aa1',
    500: '#15337a',
    950: '#000000',
  },
}

SCSS

$custom: #15337a;
$custom-light: #656aa1;
$custom-dark: #000000;

JSON

{
  "hex": "#15337a",
  "rgb": {
    "r": 21,
    "g": 51,
    "b": 122
  },
  "hsl": {
    "h": 222.178,
    "s": 70.629,
    "l": 28.039
  },
  "oklch": {
    "l": 0.34627,
    "c": 0.12652,
    "h": 263.7
  },
  "luminance": 0.03932
}

Semantic roles & 50–950 ramp

primary

#15337A

secondary

#AF8D3B

accent

#B83AED

background

#F6F6FA

surface

#EBEBF3

border

#C6C6CD

text

#06060F

muted

#7A7A7F

Preview Lab

Preview with #15337A

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

Preview Lab → · Contrast checker → · Palette generator →