#657CCE#657CCE

#657CCE is a mid, vivid blue. Relative luminance 0.216; OKLCH L 60.6% C 0.128 H 270.4°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#657CCE
RGB	rgb(101, 124, 206)
HSL	hsl(227, 52%, 60%)
HSV	hsv(227, 51%, 81%)
CMYK	cmyk(51%, 39.8%, 0%, 19.2%)
CIE-LAB	lab(53.64, 14.59, -45.08)
CIE-LCH	lch(53.64, 47.38, 287.93°)
OKLab	oklab(60.56% 0.0009 -0.1276)
OKLCH	oklch(60.56% 0.128 270.4)
XYZ	xyz(23.7115, 21.6367, 61.3074)
Luminance	0.2164 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657CCE #CEB765

analogous

#65B1CE #657CCE #8265CE

triadic

#657CCE #CE657C #7CCE65

tetradic

#657CCE #CE65B1 #CEB765 #65CE82

square

#657CCE #CE65B1 #CEB765 #65CE82

split-complementary

#657CCE #CE8265 #B1CE65

monochromatic

#2D418C #3B57BA #657CCE #93A3DD #C2CBEC

Accessibility & contrast

On white

3.94

#657CCE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#657CCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657CCE

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657CCE	#FFFFFF	#000000	##000000
##657CCE	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B85D1

Deuteranopia (green-blind)

#507CCC

Tritanopia (blue-blind)

#378E9B

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #657cce;
/* rgb */ color: rgb(101, 124, 206);
/* oklch */ color: oklch(60.6% 0.128 270.4);

Tailwind

colors: {
  custom: {
    50: '#97a1dd',
    500: '#657cce',
    950: '#000000',
  },
}

SCSS

$custom: #657cce;
$custom-light: #97a1dd;
$custom-dark: #000000;

JSON

{
  "hex": "#657cce",
  "rgb": {
    "r": 101,
    "g": 124,
    "b": 206
  },
  "hsl": {
    "h": 226.857,
    "s": 51.724,
    "l": 60.196
  },
  "oklch": {
    "l": 0.60558,
    "c": 0.12762,
    "h": 270.4
  },
  "luminance": 0.21638
}

Semantic roles & 50–950 ramp

primary

#657CCE

secondary

#DCD3B3

accent

#9E26BF

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #657CCE

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

Preview Lab → · Contrast checker → · Palette generator →