#5370DD#5370DD

#5370DD is a mid, vivid blue. Relative luminance 0.186; OKLCH L 58.0% C 0.169 H 269.3°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#5370DD
RGB	rgb(83, 112, 221)
HSL	hsl(227, 67%, 60%)
HSV	hsv(227, 62%, 87%)
CMYK	cmyk(62.4%, 49.3%, 0%, 13.3%)
CIE-LAB	lab(50.27, 23.23, -59.02)
CIE-LCH	lch(50.27, 63.43, 291.49°)
OKLab	oklab(57.99% -0.0019 -0.169)
OKLCH	oklch(57.99% 0.169 269.3)
XYZ	xyz(22.4082, 18.6458, 70.8107)
Luminance	0.1865 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5370DD #DDC053

analogous

#53B5DD #5370DD #7B53DD

triadic

#5370DD #DD5370 #70DD53

tetradic

#5370DD #DD53B5 #DDC053 #53DD7B

square

#5370DD #DD53B5 #DDC053 #53DD7B

split-complementary

#5370DD #DD7B53 #B5DD53

monochromatic

#1E3898 #284ACB #5370DD #869AE7 #B9C5F1

Accessibility & contrast

On white

4.44

#5370DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#5370DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5370DD

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5370DD	#FFFFFF	#000000	##000000
##5370DD	1.00	4.44	4.73	4.73
#FFFFFF	4.44	1.00	21.00	21.00
#000000	4.73	21.00	1.00	1.00
##000000	4.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#357EE1

Deuteranopia (green-blind)

#1372DB

Tritanopia (blue-blind)

#00899C

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #5370dd;
/* rgb */ color: rgb(83, 112, 221);
/* oklch */ color: oklch(58.0% 0.169 269.3);

Tailwind

colors: {
  custom: {
    50: '#9098e8',
    500: '#5370dd',
    950: '#000000',
  },
}

SCSS

$custom: #5370dd;
$custom-light: #9098e8;
$custom-dark: #000000;

JSON

{
  "hex": "#5370dd",
  "rgb": {
    "r": 83,
    "g": 112,
    "b": 221
  },
  "hsl": {
    "h": 227.391,
    "s": 66.99,
    "l": 59.608
  },
  "oklch": {
    "l": 0.57986,
    "c": 0.16903,
    "h": 269.3
  },
  "luminance": 0.18648
}

Semantic roles & 50–950 ramp

primary

#5370DD

secondary

#E1D5AB

accent

#C63EEA

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0D16

muted

#7E7E84

Preview Lab

Preview with #5370DD

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

Preview Lab → · Contrast checker → · Palette generator →