#5866EF#5866EF

#5866EF is a mid, highly saturated blue. Relative luminance 0.178; OKLCH L 57.7% C 0.204 H 273.7°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#5866EF
RGB	rgb(88, 102, 239)
HSL	hsl(234, 83%, 64%)
HSV	hsv(234, 63%, 94%)
CMYK	cmyk(63.2%, 57.3%, 0%, 6.3%)
CIE-LAB	lab(49.26, 36.26, -70.76)
CIE-LCH	lch(49.26, 79.51, 297.13°)
OKLab	oklab(57.69% 0.0132 -0.2036)
OKLCH	oklch(57.69% 0.204 273.7)
XYZ	xyz(24.3507, 17.8074, 83.7985)
Luminance	0.1781 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5866EF #EFE158

analogous

#58B2EF #5866EF #9658EF

triadic

#5866EF #EF5866 #66EF58

tetradic

#5866EF #EF58B2 #EFE158 #58EF96

square

#5866EF #EF58B2 #EFE158 #58EF96

split-complementary

#5866EF #EF9658 #B2EF58

monochromatic

#1222BB #2033EA #5866EF #9099F4 #C8CCFA

Accessibility & contrast

On white

4.60

#5866EF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#5866EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #5866EF

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5866EF	#FFFFFF	#000000	##FFFFFF
##5866EF	1.00	4.60	4.56	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007CF4

Deuteranopia (green-blind)

#006FEC

Tritanopia (blue-blind)

#0087A1

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #5866ef;
/* rgb */ color: rgb(88, 102, 239);
/* oklch */ color: oklch(57.7% 0.204 273.7);

Tailwind

colors: {
  custom: {
    50: '#9691f5',
    500: '#5866ef',
    950: '#000000',
  },
}

SCSS

$custom: #5866ef;
$custom-light: #9691f5;
$custom-dark: #000000;

JSON

{
  "hex": "#5866ef",
  "rgb": {
    "r": 88,
    "g": 102,
    "b": 239
  },
  "hsl": {
    "h": 234.437,
    "s": 82.514,
    "l": 64.118
  },
  "oklch": {
    "l": 0.5769,
    "c": 0.20401,
    "h": 273.7
  },
  "luminance": 0.17809
}

Semantic roles & 50–950 ramp

primary

#5866EF

secondary

#ECE7B7

accent

#CB07DF

background

#FAF8FF

surface

#F3F0FF

border

#CDCBD7

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #5866EF

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

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