#5657CB#5657CB

#5657CB is a mid, vivid blue. Relative luminance 0.131; OKLCH L 52.1% C 0.176 H 278.0°. Best body text is #FFFFFF at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#5657CB
RGB	rgb(86, 87, 203)
HSL	hsl(239, 53%, 57%)
HSV	hsv(239, 58%, 80%)
CMYK	cmyk(57.6%, 57.1%, 0%, 20.4%)
CIE-LAB	lab(42.92, 33.28, -60.60)
CIE-LCH	lch(42.92, 69.14, 298.77°)
OKLab	oklab(52.13% 0.0245 -0.1739)
OKLCH	oklch(52.13% 0.176 278)
XYZ	xyz(18.0220, 13.1054, 58.0682)
Luminance	0.1311 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5657CB #CBCA56

analogous

#5692CB #5657CB #9056CB

triadic

#5657CB #CB5657 #57CB56

tetradic

#5657CB #CB5692 #CBCA56 #56CB90

square

#5657CB #CB5692 #CBCA56 #56CB90

split-complementary

#5657CB #CB9056 #92CB56

monochromatic

#27287F #3637AE #5657CB #8586D9 #B4B4E8

Accessibility & contrast

On white

5.80

#5657CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#5657CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5657CB

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5657CB	#FFFFFF	#000000	##FFFFFF
##5657CB	1.00	5.80	3.62	5.80
#FFFFFF	5.80	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ACF

Deuteranopia (green-blind)

#0061C9

Tritanopia (blue-blind)

#097288

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #5657cb;
/* rgb */ color: rgb(86, 87, 203);
/* oklch */ color: oklch(52.1% 0.176 278.0);

Tailwind

colors: {
  custom: {
    50: '#9086dc',
    500: '#5657cb',
    950: '#000000',
  },
}

SCSS

$custom: #5657cb;
$custom-light: #9086dc;
$custom-dark: #000000;

JSON

{
  "hex": "#5657cb",
  "rgb": {
    "r": 86,
    "g": 87,
    "b": 203
  },
  "hsl": {
    "h": 239.487,
    "s": 52.941,
    "l": 56.667
  },
  "oklch": {
    "l": 0.52132,
    "c": 0.17559,
    "h": 278
  },
  "luminance": 0.13107
}

Semantic roles & 50–950 ramp

primary

#5657CB

secondary

#D6D6A6

accent

#DB4BDC

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #5657CB

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

Preview Lab → · Contrast checker → · Palette generator →