#5870CB#5870CB

#5870CB is a mid, vivid blue. Relative luminance 0.180; OKLCH L 57.1% C 0.143 H 270.3°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#5870CB
RGB	rgb(88, 112, 203)
HSL	hsl(227, 53%, 57%)
HSV	hsv(227, 57%, 80%)
CMYK	cmyk(56.7%, 44.8%, 0%, 20.4%)
CIE-LAB	lab(49.46, 18.14, -50.07)
CIE-LCH	lch(49.46, 53.25, 289.92°)
OKLab	oklab(57.1% 0.0007 -0.1426)
OKLCH	oklch(57.1% 0.143 270.3)
XYZ	xyz(20.5946, 17.9733, 58.8723)
Luminance	0.1797 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5870CB #CBB358

analogous

#58AACB #5870CB #7A58CB

triadic

#5870CB #CB5870 #70CB58

tetradic

#5870CB #CB58AA #CBB358 #58CB7A

square

#5870CB #CB58AA #CBB358 #58CB7A

split-complementary

#5870CB #CB7A58 #AACB58

monochromatic

#283B81 #3750AF #5870CB #8798DA #B5C0E8

Accessibility & contrast

On white

4.57

#5870CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#5870CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5870CB

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5870CB	#FFFFFF	#000000	##000000
##5870CB	1.00	4.57	4.60	4.60
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#477BCE

Deuteranopia (green-blind)

#3871C9

Tritanopia (blue-blind)

#0B8494

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #5870cb;
/* rgb */ color: rgb(88, 112, 203);
/* oklch */ color: oklch(57.1% 0.143 270.3);

Tailwind

colors: {
  custom: {
    50: '#9098db',
    500: '#5870cb',
    950: '#000000',
  },
}

SCSS

$custom: #5870cb;
$custom-light: #9098db;
$custom-dark: #000000;

JSON

{
  "hex": "#5870cb",
  "rgb": {
    "r": 88,
    "g": 112,
    "b": 203
  },
  "hsl": {
    "h": 227.478,
    "s": 52.511,
    "l": 57.059
  },
  "oklch": {
    "l": 0.57096,
    "c": 0.1426,
    "h": 270.3
  },
  "luminance": 0.17975
}

Semantic roles & 50–950 ramp

primary

#5870CB

secondary

#D7CDA8

accent

#BE4CDC

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0D15

muted

#7E7E83

Preview Lab

Preview with #5870CB

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

Preview Lab → · Contrast checker → · Palette generator →