#657DDE#657DDE

#657DDE is a mid, vivid blue. Relative luminance 0.227; OKLCH L 61.7% C 0.149 H 271.0°. Best body text is #000000 at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#657DDE
RGB	rgb(101, 125, 222)
HSL	hsl(228, 65%, 63%)
HSV	hsv(228, 55%, 87%)
CMYK	cmyk(54.5%, 43.7%, 0%, 12.9%)
CIE-LAB	lab(54.77, 19.04, -52.32)
CIE-LCH	lch(54.77, 55.68, 290.00°)
OKLab	oklab(61.7% 0.0027 -0.1488)
OKLCH	oklch(61.7% 0.149 271)
XYZ	xyz(25.8809, 22.7060, 72.1120)
Luminance	0.2271 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657DDE #DEC665

analogous

#65B9DE #657DDE #8965DE

triadic

#657DDE #DE657D #7DDE65

tetradic

#657DDE #DE65B9 #DEC665 #65DE89

square

#657DDE #DE65B9 #DEC665 #65DE89

split-complementary

#657DDE #DE8965 #B9DE65

monochromatic

#233DA5 #3352D3 #657DDE #97A8E9 #CAD2F4

Accessibility & contrast

On white

3.79

#657DDE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.54

#657DDE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657DDE

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657DDE	#FFFFFF	#000000	##000000
##657DDE	1.00	3.79	5.54	5.54
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.54	21.00	1.00	1.00
##000000	5.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5389E2

Deuteranopia (green-blind)

#447EDC

Tritanopia (blue-blind)

#2392A3

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #657dde;
/* rgb */ color: rgb(101, 125, 222);
/* oklch */ color: oklch(61.7% 0.149 271.0);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#657dde",
  "rgb": {
    "r": 101,
    "g": 125,
    "b": 222
  },
  "hsl": {
    "h": 228.099,
    "s": 64.706,
    "l": 63.333
  },
  "oklch": {
    "l": 0.61704,
    "c": 0.14882,
    "h": 271
  },
  "luminance": 0.22708
}

Semantic roles & 50–950 ramp

primary

#657DDE

secondary

#E5DCBA

accent

#A919CD

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0F16

muted

#7E7E84

Preview Lab

Preview with #657DDE

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

Preview Lab → · Contrast checker → · Palette generator →