#657EDD#657EDD

#657EDD is a mid, vivid blue. Relative luminance 0.229; OKLCH L 61.8% C 0.146 H 270.5°. Best body text is #000000 at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#657EDD
RGB	rgb(101, 126, 221)
HSL	hsl(228, 64%, 63%)
HSV	hsv(228, 54%, 87%)
CMYK	cmyk(54.3%, 43%, 0%, 13.3%)
CIE-LAB	lab(54.98, 18.12, -51.43)
CIE-LCH	lch(54.98, 54.52, 289.41°)
OKLab	oklab(61.85% 0.0014 -0.1462)
OKLCH	oklch(61.85% 0.146 270.5)
XYZ	xyz(25.8745, 22.9070, 71.4506)
Luminance	0.2291 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657EDD #DDC465

analogous

#65BADD #657EDD #8865DD

triadic

#657EDD #DD657E #7EDD65

tetradic

#657EDD #DD65BA #DDC465 #65DD88

square

#657EDD #DD65BA #DDC465 #65DD88

split-complementary

#657EDD #DD8865 #BADD65

monochromatic

#243FA4 #3354D2 #657EDD #97A8E8 #C9D2F3

Accessibility & contrast

On white

3.76

#657EDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.58

#657EDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657EDD

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657EDD	#FFFFFF	#000000	##000000
##657EDD	1.00	3.76	5.58	5.58
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.58	21.00	1.00	1.00
##000000	5.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5589E1

Deuteranopia (green-blind)

#477FDB

Tritanopia (blue-blind)

#2593A3

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #657edd;
/* rgb */ color: rgb(101, 126, 221);
/* oklch */ color: oklch(61.8% 0.146 270.5);

Tailwind

colors: {
  custom: {
    50: '#99a3e8',
    500: '#657edd',
    950: '#000000',
  },
}

SCSS

$custom: #657edd;
$custom-light: #99a3e8;
$custom-dark: #000000;

JSON

{
  "hex": "#657edd",
  "rgb": {
    "r": 101,
    "g": 126,
    "b": 221
  },
  "hsl": {
    "h": 227.5,
    "s": 63.83,
    "l": 63.137
  },
  "oklch": {
    "l": 0.61846,
    "c": 0.14618,
    "h": 270.5
  },
  "luminance": 0.22909
}

Semantic roles & 50–950 ramp

primary

#657EDD

secondary

#E4DBB9

accent

#A71ACC

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0F16

muted

#7E7E84

Preview Lab

Preview with #657EDD

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

Preview Lab → · Contrast checker → · Palette generator →