#657DDB#657DDB

#657DDB is a mid, vivid blue. Relative luminance 0.225; OKLCH L 61.5% C 0.145 H 270.9°. Best body text is #000000 at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#657DDB
RGB	rgb(101, 125, 219)
HSL	hsl(228, 62%, 63%)
HSV	hsv(228, 54%, 86%)
CMYK	cmyk(53.9%, 42.9%, 0%, 14.1%)
CIE-LAB	lab(54.60, 18.09, -50.90)
CIE-LCH	lch(54.60, 54.02, 289.56°)
OKLab	oklab(61.52% 0.0022 -0.1446)
OKLCH	oklch(61.52% 0.145 270.9)
XYZ	xyz(25.4824, 22.5466, 70.0132)
Luminance	0.2255 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657DDB #DBC365

analogous

#65B8DB #657DDB #8865DB

triadic

#657DDB #DB657D #7DDB65

tetradic

#657DDB #DB65B8 #DBC365 #65DB88

square

#657DDB #DB65B8 #DBC365 #65DB88

split-complementary

#657DDB #DB8865 #B8DB65

monochromatic

#253EA0 #3353CF #657DDB #97A7E7 #C8D1F2

Accessibility & contrast

On white

3.81

#657DDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.51

#657DDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657DDB

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657DDB	#FFFFFF	#000000	##000000
##657DDB	1.00	3.81	5.51	5.51
#FFFFFF	3.81	1.00	21.00	21.00
#000000	5.51	21.00	1.00	1.00
##000000	5.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5588DF

Deuteranopia (green-blind)

#477ED9

Tritanopia (blue-blind)

#2891A1

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #657ddb;
/* rgb */ color: rgb(101, 125, 219);
/* oklch */ color: oklch(61.5% 0.145 270.9);

Tailwind

colors: {
  custom: {
    50: '#99a2e7',
    500: '#657ddb',
    950: '#000000',
  },
}

SCSS

$custom: #657ddb;
$custom-light: #99a2e7;
$custom-dark: #000000;

JSON

{
  "hex": "#657ddb",
  "rgb": {
    "r": 101,
    "g": 125,
    "b": 219
  },
  "hsl": {
    "h": 227.797,
    "s": 62.105,
    "l": 62.745
  },
  "oklch": {
    "l": 0.61523,
    "c": 0.14465,
    "h": 270.9
  },
  "luminance": 0.22548
}

Semantic roles & 50–950 ramp

primary

#657DDB

secondary

#E3DBB9

accent

#A61CCA

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #657DDB

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

Preview Lab → · Contrast checker → · Palette generator →