#657BDC#657BDC

#657BDC is a mid, vivid blue. Relative luminance 0.221; OKLCH L 61.2% C 0.149 H 271.8°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#657BDC
RGB	rgb(101, 123, 220)
HSL	hsl(229, 63%, 63%)
HSV	hsv(229, 54%, 86%)
CMYK	cmyk(54.1%, 44.1%, 0%, 13.7%)
CIE-LAB	lab(54.13, 19.62, -52.21)
CIE-LCH	lch(54.13, 55.77, 290.59°)
OKLab	oklab(61.18% 0.0046 -0.1485)
OKLCH	oklch(61.18% 0.149 271.8)
XYZ	xyz(25.3638, 22.0981, 70.6251)
Luminance	0.2210 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657BDC #DCC665

analogous

#65B6DC #657BDC #8B65DC

triadic

#657BDC #DC657B #7BDC65

tetradic

#657BDC #DC65B6 #DCC665 #65DC8B

square

#657BDC #DC65B6 #DCC665 #65DC8B

split-complementary

#657BDC #DC8B65 #B6DC65

monochromatic

#253CA2 #3350D1 #657BDC #97A6E7 #C9D0F3

Accessibility & contrast

On white

3.87

#657BDC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#657BDC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657BDC

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657BDC	#FFFFFF	#000000	##000000
##657BDC	1.00	3.87	5.42	5.42
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5187E0

Deuteranopia (green-blind)

#427DDA

Tritanopia (blue-blind)

#2790A1

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #657bdc;
/* rgb */ color: rgb(101, 123, 220);
/* oklch */ color: oklch(61.2% 0.149 271.8);

Tailwind

colors: {
  custom: {
    50: '#99a0e7',
    500: '#657bdc',
    950: '#000000',
  },
}

SCSS

$custom: #657bdc;
$custom-light: #99a0e7;
$custom-dark: #000000;

JSON

{
  "hex": "#657bdc",
  "rgb": {
    "r": 101,
    "g": 123,
    "b": 220
  },
  "hsl": {
    "h": 228.908,
    "s": 62.963,
    "l": 62.941
  },
  "oklch": {
    "l": 0.61181,
    "c": 0.14858,
    "h": 271.8
  },
  "luminance": 0.221
}

Semantic roles & 50–950 ramp

primary

#657BDC

secondary

#E4DCB9

accent

#AA1BCB

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #657BDC

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

Preview Lab → · Contrast checker → · Palette generator →