#657EDF#657EDF

#657EDF is a mid, vivid blue. Relative luminance 0.230; OKLCH L 62.0% C 0.149 H 270.7°. Best body text is #000000 at 5.60:1 contrast (WCAG AA passes).

Color values

HEX	#657EDF
RGB	rgb(101, 126, 223)
HSL	hsl(228, 66%, 64%)
HSV	hsv(228, 55%, 87%)
CMYK	cmyk(54.7%, 43.5%, 0%, 12.5%)
CIE-LAB	lab(55.09, 18.76, -52.37)
CIE-LCH	lch(55.09, 55.63, 289.71°)
OKLab	oklab(61.97% 0.0017 -0.1489)
OKLCH	oklch(61.97% 0.149 270.7)
XYZ	xyz(26.1426, 23.0142, 72.8623)
Luminance	0.2302 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657EDF #DFC665

analogous

#65BBDF #657EDF #8965DF

triadic

#657EDF #DF657E #7EDF65

tetradic

#657EDF #DF65BB #DFC665 #65DF89

square

#657EDF #DF65BB #DFC665 #65DF89

split-complementary

#657EDF #DF8965 #BBDF65

monochromatic

#233EA7 #3254D4 #657EDF #98A8EA #CAD3F4

Accessibility & contrast

On white

3.75

#657EDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.60

#657EDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657EDF

5.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657EDF	#FFFFFF	#000000	##000000
##657EDF	1.00	3.75	5.60	5.60
#FFFFFF	3.75	1.00	21.00	21.00
#000000	5.60	21.00	1.00	1.00
##000000	5.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#548AE3

Deuteranopia (green-blind)

#457FDD

Tritanopia (blue-blind)

#2193A4

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #657edf;
/* rgb */ color: rgb(101, 126, 223);
/* oklch */ color: oklch(62.0% 0.149 270.7);

Tailwind

colors: {
  custom: {
    50: '#99a3e9',
    500: '#657edf',
    950: '#000000',
  },
}

SCSS

$custom: #657edf;
$custom-light: #99a3e9;
$custom-dark: #000000;

JSON

{
  "hex": "#657edf",
  "rgb": {
    "r": 101,
    "g": 126,
    "b": 223
  },
  "hsl": {
    "h": 227.705,
    "s": 65.591,
    "l": 63.529
  },
  "oklch": {
    "l": 0.61966,
    "c": 0.14896,
    "h": 270.7
  },
  "luminance": 0.23016
}

Semantic roles & 50–950 ramp

primary

#657EDF

secondary

#E6DDBA

accent

#A818CD

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0F16

muted

#7E7E84

Preview Lab

Preview with #657EDF

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

Preview Lab → · Contrast checker → · Palette generator →