#15357D#15357D

#15357D is a dark, vivid blue. Relative luminance 0.042; OKLCH L 35.3% C 0.128 H 263.3°. Best body text is #FFFFFF at 11.43:1 contrast (WCAG AA passes).

Color values

HEX	#15357D
RGB	rgb(21, 53, 125)
HSL	hsl(222, 71%, 29%)
HSV	hsv(222, 83%, 49%)
CMYK	cmyk(83.2%, 57.6%, 0%, 51%)
CIE-LAB	lab(24.28, 17.21, -44.11)
CIE-LCH	lch(24.28, 47.35, 291.31°)
OKLab	oklab(35.33% -0.015 -0.1273)
OKLCH	oklch(35.33% 0.128 263.3)
XYZ	xyz(5.2827, 4.1857, 19.9276)
Luminance	0.0419 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15357D #7D5D15

analogous

#15697D #15357D #29157D

triadic

#15357D #7D1535 #357D15

tetradic

#15357D #7D1569 #7D5D15 #157D29

square

#15357D #7D1569 #7D5D15 #157D29

split-complementary

#15357D #7D2915 #697D15

monochromatic

#040B1A #0C1F49 #15357D #1E4BB1 #3065DC

Accessibility & contrast

On white

11.43

#15357D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#15357D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15357D

11.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15357D	#FFFFFF	#000000	##FFFFFF
##15357D	1.00	11.43	1.84	11.43
#FFFFFF	11.43	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F7F

Deuteranopia (green-blind)

#00357C

Tritanopia (blue-blind)

#004753

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #15357d;
/* rgb */ color: rgb(21, 53, 125);
/* oklch */ color: oklch(35.3% 0.128 263.3);

Tailwind

colors: {
  custom: {
    50: '#666ba3',
    500: '#15357d',
    950: '#000000',
  },
}

SCSS

$custom: #15357d;
$custom-light: #666ba3;
$custom-dark: #000000;

JSON

{
  "hex": "#15357d",
  "rgb": {
    "r": 21,
    "g": 53,
    "b": 125
  },
  "hsl": {
    "h": 221.538,
    "s": 71.233,
    "l": 28.627
  },
  "oklch": {
    "l": 0.35332,
    "c": 0.12821,
    "h": 263.3
  },
  "luminance": 0.04186
}

Semantic roles & 50–950 ramp

primary

#15357D

secondary

#B28E3C

accent

#B73AEE

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #15357D

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

Preview Lab → · Contrast checker → · Palette generator →