#657BD1#657BD1

#657BD1 is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.5% C 0.133 H 271.1°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#657BD1
RGB	rgb(101, 123, 209)
HSL	hsl(228, 54%, 61%)
HSV	hsv(228, 52%, 82%)
CMYK	cmyk(51.7%, 41.1%, 0%, 18%)
CIE-LAB	lab(53.53, 16.13, -46.96)
CIE-LCH	lch(53.53, 49.65, 288.96°)
OKLab	oklab(60.53% 0.0027 -0.1331)
OKLCH	oklch(60.53% 0.133 271.1)
XYZ	xyz(23.9547, 21.5345, 63.2035)
Luminance	0.2154 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657BD1 #D1BB65

analogous

#65B1D1 #657BD1 #8565D1

triadic

#657BD1 #D1657B #7BD165

tetradic

#657BD1 #D165B1 #D1BB65 #65D185

square

#657BD1 #D165B1 #D1BB65 #65D185

split-complementary

#657BD1 #D18565 #B1D165

monochromatic

#2B4090 #3955C0 #657BD1 #94A3DF #C3CCED

Accessibility & contrast

On white

3.96

#657BD1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#657BD1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657BD1

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657BD1	#FFFFFF	#000000	##000000
##657BD1	1.00	3.96	5.31	5.31
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5885D4

Deuteranopia (green-blind)

#4C7CCF

Tritanopia (blue-blind)

#348D9C

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #657bd1;
/* rgb */ color: rgb(101, 123, 209);
/* oklch */ color: oklch(60.5% 0.133 271.1);

Tailwind

colors: {
  custom: {
    50: '#97a0df',
    500: '#657bd1',
    950: '#000000',
  },
}

SCSS

$custom: #657bd1;
$custom-light: #97a0df;
$custom-dark: #000000;

JSON

{
  "hex": "#657bd1",
  "rgb": {
    "r": 101,
    "g": 123,
    "b": 209
  },
  "hsl": {
    "h": 227.778,
    "s": 54,
    "l": 60.784
  },
  "oklch": {
    "l": 0.60525,
    "c": 0.13314,
    "h": 271.1
  },
  "luminance": 0.21536
}

Semantic roles & 50–950 ramp

primary

#657BD1

secondary

#DDD5B4

accent

#A124C1

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #657BD1

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

Preview Lab → · Contrast checker → · Palette generator →