#657BDD#657BDD

#657BDD is a mid, vivid blue. Relative luminance 0.222; OKLCH L 61.2% C 0.150 H 271.8°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#657BDD
RGB	rgb(101, 123, 221)
HSL	hsl(229, 64%, 63%)
HSV	hsv(229, 54%, 87%)
CMYK	cmyk(54.3%, 44.3%, 0%, 13.3%)
CIE-LAB	lab(54.19, 19.94, -52.68)
CIE-LCH	lch(54.19, 56.33, 290.73°)
OKLab	oklab(61.24% 0.0047 -0.1499)
OKLCH	oklch(61.24% 0.15 271.8)
XYZ	xyz(25.4967, 22.1513, 71.3247)
Luminance	0.2215 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657BDD #DDC765

analogous

#65B7DD #657BDD #8B65DD

triadic

#657BDD #DD657B #7BDD65

tetradic

#657BDD #DD65B7 #DDC765 #65DD8B

square

#657BDD #DD65B7 #DDC765 #65DD8B

split-complementary

#657BDD #DD8B65 #B7DD65

monochromatic

#243BA4 #3350D2 #657BDD #97A6E8 #C9D1F3

Accessibility & contrast

On white

3.87

#657BDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#657BDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657BDD

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657BDD	#FFFFFF	#000000	##000000
##657BDD	1.00	3.87	5.43	5.43
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.43	21.00	1.00	1.00
##000000	5.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5087E1

Deuteranopia (green-blind)

#417DDB

Tritanopia (blue-blind)

#2590A1

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #657bdd;
/* rgb */ color: rgb(101, 123, 221);
/* oklch */ color: oklch(61.2% 0.150 271.8);

Tailwind

colors: {
  custom: {
    50: '#99a0e8',
    500: '#657bdd',
    950: '#000000',
  },
}

SCSS

$custom: #657bdd;
$custom-light: #99a0e8;
$custom-dark: #000000;

JSON

{
  "hex": "#657bdd",
  "rgb": {
    "r": 101,
    "g": 123,
    "b": 221
  },
  "hsl": {
    "h": 229,
    "s": 63.83,
    "l": 63.137
  },
  "oklch": {
    "l": 0.61242,
    "c": 0.14996,
    "h": 271.8
  },
  "luminance": 0.22153
}

Semantic roles & 50–950 ramp

primary

#657BDD

secondary

#E4DDB9

accent

#AB1ACC

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0E16

muted

#7E7E84

Preview Lab

Preview with #657BDD

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

Preview Lab → · Contrast checker → · Palette generator →