#657CDB#657CDB

#657CDB is a mid, vivid blue. Relative luminance 0.223; OKLCH L 61.3% C 0.146 H 271.3°. Best body text is #000000 at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#657CDB
RGB	rgb(101, 124, 219)
HSL	hsl(228, 62%, 63%)
HSV	hsv(228, 54%, 86%)
CMYK	cmyk(53.9%, 43.4%, 0%, 14.1%)
CIE-LAB	lab(54.34, 18.69, -51.32)
CIE-LCH	lch(54.34, 54.62, 290.01°)
OKLab	oklab(61.32% 0.0033 -0.1459)
OKLCH	oklch(61.32% 0.146 271.3)
XYZ	xyz(25.3565, 22.2947, 69.9712)
Luminance	0.2230 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657CDB #DBC465

analogous

#65B7DB #657CDB #8965DB

triadic

#657CDB #DB657C #7CDB65

tetradic

#657CDB #DB65B7 #DBC465 #65DB89

square

#657CDB #DB65B7 #DBC465 #65DB89

split-complementary

#657CDB #DB8965 #B7DB65

monochromatic

#253DA0 #3352CF #657CDB #97A6E7 #C8D0F2

Accessibility & contrast

On white

3.85

#657CDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.46

#657CDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657CDB

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657CDB	#FFFFFF	#000000	##000000
##657CDB	1.00	3.85	5.46	5.46
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.46	21.00	1.00	1.00
##000000	5.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5387DF

Deuteranopia (green-blind)

#457DD9

Tritanopia (blue-blind)

#2891A1

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #657cdb;
/* rgb */ color: rgb(101, 124, 219);
/* oklch */ color: oklch(61.3% 0.146 271.3);

Tailwind

colors: {
  custom: {
    50: '#99a1e7',
    500: '#657cdb',
    950: '#000000',
  },
}

SCSS

$custom: #657cdb;
$custom-light: #99a1e7;
$custom-dark: #000000;

JSON

{
  "hex": "#657cdb",
  "rgb": {
    "r": 101,
    "g": 124,
    "b": 219
  },
  "hsl": {
    "h": 228.305,
    "s": 62.105,
    "l": 62.745
  },
  "oklch": {
    "l": 0.61321,
    "c": 0.14592,
    "h": 271.3
  },
  "luminance": 0.22296
}

Semantic roles & 50–950 ramp

primary

#657CDB

secondary

#E3DBB9

accent

#A81CCA

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #657CDB

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

Preview Lab → · Contrast checker → · Palette generator →