#657BDB#657BDB

#657BDB is a mid, vivid blue. Relative luminance 0.220; OKLCH L 61.1% C 0.147 H 271.7°. Best body text is #000000 at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#657BDB
RGB	rgb(101, 123, 219)
HSL	hsl(229, 62%, 63%)
HSV	hsv(229, 54%, 86%)
CMYK	cmyk(53.9%, 43.8%, 0%, 14.1%)
CIE-LAB	lab(54.08, 19.30, -51.74)
CIE-LCH	lch(54.08, 55.22, 290.46°)
OKLab	oklab(61.12% 0.0044 -0.1471)
OKLCH	oklch(61.12% 0.147 271.7)
XYZ	xyz(25.2318, 22.0453, 69.9297)
Luminance	0.2205 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657BDB #DBC565

analogous

#65B6DB #657BDB #8A65DB

triadic

#657BDB #DB657B #7BDB65

tetradic

#657BDB #DB65B6 #DBC565 #65DB8A

square

#657BDB #DB65B6 #DBC565 #65DB8A

split-complementary

#657BDB #DB8A65 #B6DB65

monochromatic

#253CA0 #3350CF #657BDB #97A6E7 #C8D0F2

Accessibility & contrast

On white

3.88

#657BDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.41

#657BDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657BDB

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657BDB	#FFFFFF	#000000	##000000
##657BDB	1.00	3.88	5.41	5.41
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.41	21.00	1.00	1.00
##000000	5.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5187DF

Deuteranopia (green-blind)

#437CD9

Tritanopia (blue-blind)

#2890A0

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #657bdb;
/* rgb */ color: rgb(101, 123, 219);
/* oklch */ color: oklch(61.1% 0.147 271.7);

Tailwind

colors: {
  custom: {
    50: '#99a0e7',
    500: '#657bdb',
    950: '#000000',
  },
}

SCSS

$custom: #657bdb;
$custom-light: #99a0e7;
$custom-dark: #000000;

JSON

{
  "hex": "#657bdb",
  "rgb": {
    "r": 101,
    "g": 123,
    "b": 219
  },
  "hsl": {
    "h": 228.814,
    "s": 62.105,
    "l": 62.745
  },
  "oklch": {
    "l": 0.6112,
    "c": 0.14719,
    "h": 271.7
  },
  "luminance": 0.22047
}

Semantic roles & 50–950 ramp

primary

#657BDB

secondary

#E3DBB9

accent

#A91CCA

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #657BDB

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

Preview Lab → · Contrast checker → · Palette generator →