#657EDB#657EDB

#657EDB is a mid, vivid blue. Relative luminance 0.228; OKLCH L 61.7% C 0.143 H 270.4°. Best body text is #000000 at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#657EDB
RGB	rgb(101, 126, 219)
HSL	hsl(227, 62%, 63%)
HSV	hsv(227, 54%, 86%)
CMYK	cmyk(53.9%, 42.5%, 0%, 14.1%)
CIE-LAB	lab(54.87, 17.48, -50.48)
CIE-LCH	lch(54.87, 53.42, 289.10°)
OKLab	oklab(61.73% 0.0011 -0.1434)
OKLCH	oklch(61.73% 0.143 270.4)
XYZ	xyz(25.6097, 22.8011, 70.0556)
Luminance	0.2280 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657EDB #DBC265

analogous

#65B9DB #657EDB #8765DB

triadic

#657EDB #DB657E #7EDB65

tetradic

#657EDB #DB65B9 #DBC265 #65DB87

square

#657EDB #DB65B9 #DBC265 #65DB87

split-complementary

#657EDB #DB8765 #B9DB65

monochromatic

#253FA0 #3354CF #657EDB #97A8E7 #C8D1F2

Accessibility & contrast

On white

3.78

#657EDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.56

#657EDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657EDB

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657EDB	#FFFFFF	#000000	##000000
##657EDB	1.00	3.78	5.56	5.56
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.56	21.00	1.00	1.00
##000000	5.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5789DF

Deuteranopia (green-blind)

#497ED9

Tritanopia (blue-blind)

#2792A2

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #657edb;
/* rgb */ color: rgb(101, 126, 219);
/* oklch */ color: oklch(61.7% 0.143 270.4);

Tailwind

colors: {
  custom: {
    50: '#99a3e6',
    500: '#657edb',
    950: '#000000',
  },
}

SCSS

$custom: #657edb;
$custom-light: #99a3e6;
$custom-dark: #000000;

JSON

{
  "hex": "#657edb",
  "rgb": {
    "r": 101,
    "g": 126,
    "b": 219
  },
  "hsl": {
    "h": 227.288,
    "s": 62.105,
    "l": 62.745
  },
  "oklch": {
    "l": 0.61726,
    "c": 0.14339,
    "h": 270.4
  },
  "luminance": 0.22803
}

Semantic roles & 50–950 ramp

primary

#657EDB

secondary

#E3DAB9

accent

#A51CCA

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #657EDB

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

Preview Lab → · Contrast checker → · Palette generator →