#657AFB#657AFB

#657AFB is a light, vivid blue. Relative luminance 0.237; OKLCH L 63.0% C 0.192 H 272.7°. Best body text is #000000 at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#657AFB
RGB	rgb(101, 122, 251)
HSL	hsl(232, 95%, 69%)
HSV	hsv(232, 60%, 98%)
CMYK	cmyk(59.8%, 51.4%, 0%, 1.6%)
CIE-LAB	lab(55.73, 30.22, -66.92)
CIE-LCH	lch(55.73, 73.43, 294.30°)
OKLab	oklab(63% 0.0091 -0.1918)
OKLCH	oklch(63% 0.192 272.7)
XYZ	xyz(29.7332, 23.6484, 94.2458)
Luminance	0.2365 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657AFB #FBE665

analogous

#65C5FB #657AFB #9B65FB

triadic

#657AFB #FB657A #7AFB65

tetradic

#657AFB #FB65C5 #FBE665 #65FB9B

square

#657AFB #FB65C5 #FBE665 #65FB9B

split-complementary

#657AFB #FB9B65 #C5FB65

monochromatic

#0624E0 #2946F9 #657AFB #A1AEFD #DCE1FE

Accessibility & contrast

On white

3.66

#657AFB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.73

#657AFB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657AFB

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657AFB	#FFFFFF	#000000	##000000
##657AFB	1.00	3.66	5.73	5.73
#FFFFFF	3.66	1.00	21.00	21.00
#000000	5.73	21.00	1.00	1.00
##000000	5.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E8CFF

Deuteranopia (green-blind)

#007FF8

Tritanopia (blue-blind)

#0098AF

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #657afb;
/* rgb */ color: rgb(101, 122, 251);
/* oklch */ color: oklch(63.0% 0.192 272.7);

Tailwind

colors: {
  custom: {
    50: '#9da0fd',
    500: '#657afb',
    950: '#000000',
  },
}

SCSS

$custom: #657afb;
$custom-light: #9da0fd;
$custom-dark: #000000;

JSON

{
  "hex": "#657afb",
  "rgb": {
    "r": 101,
    "g": 122,
    "b": 251
  },
  "hsl": {
    "h": 231.6,
    "s": 94.937,
    "l": 69.02
  },
  "oklch": {
    "l": 0.62995,
    "c": 0.19199,
    "h": 272.7
  },
  "luminance": 0.23651
}

Semantic roles & 50–950 ramp

primary

#657AFB

secondary

#F4EEC8

accent

#C500E6

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#100E18

muted

#7F7E86

Preview Lab

Preview with #657AFB

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

Preview Lab → · Contrast checker → · Palette generator →