#5B70CF#5B70CF

#5B70CF is a mid, vivid blue. Relative luminance 0.183; OKLCH L 57.5% C 0.147 H 271.7°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#5B70CF
RGB	rgb(91, 112, 207)
HSL	hsl(229, 55%, 58%)
HSV	hsv(229, 56%, 81%)
CMYK	cmyk(56%, 45.9%, 0%, 18.8%)
CIE-LAB	lab(49.88, 20.07, -51.68)
CIE-LCH	lch(49.88, 55.44, 291.22°)
OKLab	oklab(57.53% 0.0043 -0.1473)
OKLCH	oklch(57.53% 0.147 271.7)
XYZ	xyz(21.3673, 18.3159, 61.4287)
Luminance	0.1832 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B70CF #CFBA5B

analogous

#5BAACF #5B70CF #805BCF

triadic

#5B70CF #CF5B70 #70CF5B

tetradic

#5B70CF #CF5BAA #CFBA5B #5BCF80

square

#5B70CF #CF5BAA #CFBA5B #5BCF80

split-complementary

#5B70CF #CF805B #AACF5B

monochromatic

#283988 #364DB7 #5B70CF #8A99DD #BAC3EB

Accessibility & contrast

On white

4.50

#5B70CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#5B70CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B70CF

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B70CF	#FFFFFF	#000000	##000000
##5B70CF	1.00	4.50	4.66	4.66
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#447CD3

Deuteranopia (green-blind)

#3572CD

Tritanopia (blue-blind)

#158595

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #5b70cf;
/* rgb */ color: rgb(91, 112, 207);
/* oklch */ color: oklch(57.5% 0.147 271.7);

Tailwind

colors: {
  custom: {
    50: '#9298de',
    500: '#5b70cf',
    950: '#000000',
  },
}

SCSS

$custom: #5b70cf;
$custom-light: #9298de;
$custom-dark: #000000;

JSON

{
  "hex": "#5b70cf",
  "rgb": {
    "r": 91,
    "g": 112,
    "b": 207
  },
  "hsl": {
    "h": 229.138,
    "s": 54.717,
    "l": 58.431
  },
  "oklch": {
    "l": 0.57534,
    "c": 0.14733,
    "h": 271.7
  },
  "luminance": 0.18317
}

Semantic roles & 50–950 ramp

primary

#5B70CF

secondary

#DAD2AC

accent

#C34ADE

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #5B70CF

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

Preview Lab → · Contrast checker → · Palette generator →