#15357F#15357F

#15357F is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.5% C 0.131 H 263.5°. Best body text is #FFFFFF at 11.37:1 contrast (WCAG AA passes).

Color values

HEX	#15357F
RGB	rgb(21, 53, 127)
HSL	hsl(222, 72%, 29%)
HSV	hsv(222, 83%, 50%)
CMYK	cmyk(83.5%, 58.3%, 0%, 50.2%)
CIE-LAB	lab(24.44, 18.04, -45.10)
CIE-LCH	lch(24.44, 48.58, 291.80°)
OKLab	oklab(35.51% -0.0149 -0.1302)
OKLCH	oklch(35.51% 0.131 263.5)
XYZ	xyz(5.4118, 4.2373, 20.6072)
Luminance	0.0424 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15357F #7F5F15

analogous

#156A7F #15357F #2A157F

triadic

#15357F #7F1535 #357F15

tetradic

#15357F #7F156A #7F5F15 #157F2A

square

#15357F #7F156A #7F5F15 #157F2A

split-complementary

#15357F #7F2A15 #6A7F15

monochromatic

#040B1A #0C1F4A #15357F #1E4BB4 #3165DD

Accessibility & contrast

On white

11.37

#15357F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#15357F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15357F

11.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15357F	#FFFFFF	#000000	##FFFFFF
##15357F	1.00	11.37	1.85	11.37
#FFFFFF	11.37	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F82

Deuteranopia (green-blind)

#00357E

Tritanopia (blue-blind)

#004754

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #15357f;
/* rgb */ color: rgb(21, 53, 127);
/* oklch */ color: oklch(35.5% 0.131 263.5);

Tailwind

colors: {
  custom: {
    50: '#666ba5',
    500: '#15357f',
    950: '#000000',
  },
}

SCSS

$custom: #15357f;
$custom-light: #666ba5;
$custom-dark: #000000;

JSON

{
  "hex": "#15357f",
  "rgb": {
    "r": 21,
    "g": 53,
    "b": 127
  },
  "hsl": {
    "h": 221.887,
    "s": 71.622,
    "l": 29.02
  },
  "oklch": {
    "l": 0.35509,
    "c": 0.13108,
    "h": 263.5
  },
  "luminance": 0.04238
}

Semantic roles & 50–950 ramp

primary

#15357F

secondary

#B4903C

accent

#B839EE

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #15357F

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

Preview Lab → · Contrast checker → · Palette generator →