#657CDD#657CDD

#657CDD is a mid, vivid blue. Relative luminance 0.224; OKLCH L 61.4% C 0.149 H 271.4°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#657CDD
RGB	rgb(101, 124, 221)
HSL	hsl(229, 64%, 63%)
HSV	hsv(229, 54%, 87%)
CMYK	cmyk(54.3%, 43.9%, 0%, 13.3%)
CIE-LAB	lab(54.45, 19.33, -52.27)
CIE-LCH	lch(54.45, 55.73, 290.30°)
OKLab	oklab(61.44% 0.0036 -0.1487)
OKLCH	oklch(61.44% 0.149 271.4)
XYZ	xyz(25.6214, 22.4006, 71.3662)
Luminance	0.2240 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657CDD #DDC665

analogous

#65B8DD #657CDD #8A65DD

triadic

#657CDD #DD657C #7CDD65

tetradic

#657CDD #DD65B8 #DDC665 #65DD8A

square

#657CDD #DD65B8 #DDC665 #65DD8A

split-complementary

#657CDD #DD8A65 #B8DD65

monochromatic

#243DA4 #3351D2 #657CDD #97A7E8 #C9D1F3

Accessibility & contrast

On white

3.83

#657CDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.48

#657CDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657CDD

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657CDD	#FFFFFF	#000000	##000000
##657CDD	1.00	3.83	5.48	5.48
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.48	21.00	1.00	1.00
##000000	5.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5288E1

Deuteranopia (green-blind)

#437DDB

Tritanopia (blue-blind)

#2591A2

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #657cdd;
/* rgb */ color: rgb(101, 124, 221);
/* oklch */ color: oklch(61.4% 0.149 271.4);

Tailwind

colors: {
  custom: {
    50: '#99a1e8',
    500: '#657cdd',
    950: '#000000',
  },
}

SCSS

$custom: #657cdd;
$custom-light: #99a1e8;
$custom-dark: #000000;

JSON

{
  "hex": "#657cdd",
  "rgb": {
    "r": 101,
    "g": 124,
    "b": 221
  },
  "hsl": {
    "h": 228.5,
    "s": 63.83,
    "l": 63.137
  },
  "oklch": {
    "l": 0.61442,
    "c": 0.1487,
    "h": 271.4
  },
  "luminance": 0.22402
}

Semantic roles & 50–950 ramp

primary

#657CDD

secondary

#E4DCB9

accent

#AA1ACC

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0E16

muted

#7E7E84

Preview Lab

Preview with #657CDD

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

Preview Lab → · Contrast checker → · Palette generator →