#657CDE#657CDE

#657CDE is a mid, vivid blue. Relative luminance 0.225; OKLCH L 61.5% C 0.150 H 271.4°. Best body text is #000000 at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#657CDE
RGB	rgb(101, 124, 222)
HSL	hsl(229, 65%, 63%)
HSV	hsv(229, 55%, 87%)
CMYK	cmyk(54.5%, 44.1%, 0%, 12.9%)
CIE-LAB	lab(54.51, 19.65, -52.74)
CIE-LCH	lch(54.51, 56.28, 290.43°)
OKLab	oklab(61.5% 0.0038 -0.15)
OKLCH	oklch(61.5% 0.15 271.4)
XYZ	xyz(25.7550, 22.4541, 72.0700)
Luminance	0.2246 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657CDE #DEC765

analogous

#65B8DE #657CDE #8A65DE

triadic

#657CDE #DE657C #7CDE65

tetradic

#657CDE #DE65B8 #DEC765 #65DE8A

square

#657CDE #DE65B8 #DEC765 #65DE8A

split-complementary

#657CDE #DE8A65 #B8DE65

monochromatic

#233CA5 #3351D3 #657CDE #97A7E9 #CAD2F4

Accessibility & contrast

On white

3.82

#657CDE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.49

#657CDE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657CDE

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657CDE	#FFFFFF	#000000	##000000
##657CDE	1.00	3.82	5.49	5.49
#FFFFFF	3.82	1.00	21.00	21.00
#000000	5.49	21.00	1.00	1.00
##000000	5.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5188E2

Deuteranopia (green-blind)

#427DDC

Tritanopia (blue-blind)

#2491A2

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #657cde;
/* rgb */ color: rgb(101, 124, 222);
/* oklch */ color: oklch(61.5% 0.150 271.4);

Tailwind

colors: {
  custom: {
    50: '#99a1e9',
    500: '#657cde',
    950: '#000000',
  },
}

SCSS

$custom: #657cde;
$custom-light: #99a1e9;
$custom-dark: #000000;

JSON

{
  "hex": "#657cde",
  "rgb": {
    "r": 101,
    "g": 124,
    "b": 222
  },
  "hsl": {
    "h": 228.595,
    "s": 64.706,
    "l": 63.333
  },
  "oklch": {
    "l": 0.61503,
    "c": 0.15009,
    "h": 271.4
  },
  "luminance": 0.22456
}

Semantic roles & 50–950 ramp

primary

#657CDE

secondary

#E5DDBA

accent

#AA19CD

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0E16

muted

#7E7E84

Preview Lab

Preview with #657CDE

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

Preview Lab → · Contrast checker → · Palette generator →