#657CDA#657CDA

#657CDA is a mid, vivid blue. Relative luminance 0.222; OKLCH L 61.3% C 0.145 H 271.2°. Best body text is #000000 at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#657CDA
RGB	rgb(101, 124, 218)
HSL	hsl(228, 61%, 63%)
HSV	hsv(228, 54%, 85%)
CMYK	cmyk(53.7%, 43.1%, 0%, 14.5%)
CIE-LAB	lab(54.28, 18.37, -50.84)
CIE-LCH	lch(54.28, 54.06, 289.87°)
OKLab	oklab(61.26% 0.0031 -0.1445)
OKLCH	oklch(61.26% 0.145 271.2)
XYZ	xyz(25.2252, 22.2422, 69.2800)
Luminance	0.2224 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657CDA #DAC365

analogous

#65B7DA #657CDA #8865DA

triadic

#657CDA #DA657C #7CDA65

tetradic

#657CDA #DA65B7 #DAC365 #65DA88

square

#657CDA #DA65B7 #DAC365 #65DA88

split-complementary

#657CDA #DA8865 #B7DA65

monochromatic

#263E9F #3452CE #657CDA #96A6E6 #C8D0F2

Accessibility & contrast

On white

3.85

#657CDA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.45

#657CDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657CDA

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657CDA	#FFFFFF	#000000	##000000
##657CDA	1.00	3.85	5.45	5.45
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.45	21.00	1.00	1.00
##000000	5.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5487DE

Deuteranopia (green-blind)

#467DD8

Tritanopia (blue-blind)

#2990A0

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #657cda;
/* rgb */ color: rgb(101, 124, 218);
/* oklch */ color: oklch(61.3% 0.145 271.2);

Tailwind

colors: {
  custom: {
    50: '#99a1e6',
    500: '#657cda',
    950: '#000000',
  },
}

SCSS

$custom: #657cda;
$custom-light: #99a1e6;
$custom-dark: #000000;

JSON

{
  "hex": "#657cda",
  "rgb": {
    "r": 101,
    "g": 124,
    "b": 218
  },
  "hsl": {
    "h": 228.205,
    "s": 61.257,
    "l": 62.549
  },
  "oklch": {
    "l": 0.61261,
    "c": 0.14451,
    "h": 271.2
  },
  "luminance": 0.22244
}

Semantic roles & 50–950 ramp

primary

#657CDA

secondary

#E3DAB8

accent

#A71DC9

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #657CDA

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

Preview Lab → · Contrast checker → · Palette generator →