#657DDF#657DDF

#657DDF is a mid, vivid blue. Relative luminance 0.228; OKLCH L 61.8% C 0.150 H 271.1°. Best body text is #000000 at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#657DDF
RGB	rgb(101, 125, 223)
HSL	hsl(228, 66%, 64%)
HSV	hsv(228, 55%, 87%)
CMYK	cmyk(54.7%, 43.9%, 0%, 12.5%)
CIE-LAB	lab(54.82, 19.36, -52.79)
CIE-LCH	lch(54.82, 56.23, 290.14°)
OKLab	oklab(61.77% 0.0028 -0.1502)
OKLCH	oklch(61.77% 0.15 271.1)
XYZ	xyz(26.0154, 22.7598, 72.8199)
Luminance	0.2276 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657DDF #DFC765

analogous

#65BADF #657DDF #8A65DF

triadic

#657DDF #DF657D #7DDF65

tetradic

#657DDF #DF65BA #DFC765 #65DF8A

square

#657DDF #DF65BA #DFC765 #65DF8A

split-complementary

#657DDF #DF8A65 #BADF65

monochromatic

#233DA7 #3252D4 #657DDF #98A8EA #CAD3F4

Accessibility & contrast

On white

3.78

#657DDF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.55

#657DDF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657DDF

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657DDF	#FFFFFF	#000000	##000000
##657DDF	1.00	3.78	5.55	5.55
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.55	21.00	1.00	1.00
##000000	5.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5289E3

Deuteranopia (green-blind)

#437EDD

Tritanopia (blue-blind)

#2293A3

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #657ddf;
/* rgb */ color: rgb(101, 125, 223);
/* oklch */ color: oklch(61.8% 0.150 271.1);

Tailwind

colors: {
  custom: {
    50: '#99a2e9',
    500: '#657ddf',
    950: '#000000',
  },
}

SCSS

$custom: #657ddf;
$custom-light: #99a2e9;
$custom-dark: #000000;

JSON

{
  "hex": "#657ddf",
  "rgb": {
    "r": 101,
    "g": 125,
    "b": 223
  },
  "hsl": {
    "h": 228.197,
    "s": 65.591,
    "l": 63.529
  },
  "oklch": {
    "l": 0.61765,
    "c": 0.15022,
    "h": 271.1
  },
  "luminance": 0.22762
}

Semantic roles & 50–950 ramp

primary

#657DDF

secondary

#E6DDBA

accent

#AA18CD

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0F16

muted

#7E7E84

Preview Lab

Preview with #657DDF

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

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