#657BF9#657BF9

#657BF9 is a light, vivid blue. Relative luminance 0.238; OKLCH L 63.0% C 0.188 H 272.4°. Best body text is #000000 at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#657BF9
RGB	rgb(101, 123, 249)
HSL	hsl(231, 93%, 69%)
HSV	hsv(231, 59%, 98%)
CMYK	cmyk(59.4%, 50.6%, 0%, 2.4%)
CIE-LAB	lab(55.86, 28.97, -65.62)
CIE-LCH	lch(55.86, 71.73, 293.82°)
OKLab	oklab(63.05% 0.008 -0.1879)
OKLCH	oklch(63.05% 0.188 272.4)
XYZ	xyz(29.5430, 23.7698, 92.6354)
Luminance	0.2377 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657BF9 #F9E365

analogous

#65C5F9 #657BF9 #9965F9

triadic

#657BF9 #F9657B #7BF965

tetradic

#657BF9 #F965C5 #F9E365 #65F999

square

#657BF9 #F965C5 #F9E365 #65F999

split-complementary

#657BF9 #F99965 #C5F965

monochromatic

#0928DB #2A49F7 #657BF9 #A0ADFB #DBE0FE

Accessibility & contrast

On white

3.65

#657BF9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.75

#657BF9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657BF9

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657BF9	#FFFFFF	#000000	##000000
##657BF9	1.00	3.65	5.75	5.75
#FFFFFF	3.65	1.00	21.00	21.00
#000000	5.75	21.00	1.00	1.00
##000000	5.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#348DFD

Deuteranopia (green-blind)

#0880F6

Tritanopia (blue-blind)

#0098AE

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #657bf9;
/* rgb */ color: rgb(101, 123, 249);
/* oklch */ color: oklch(63.0% 0.188 272.4);

Tailwind

colors: {
  custom: {
    50: '#9da0fc',
    500: '#657bf9',
    950: '#000000',
  },
}

SCSS

$custom: #657bf9;
$custom-light: #9da0fc;
$custom-dark: #000000;

JSON

{
  "hex": "#657bf9",
  "rgb": {
    "r": 101,
    "g": 123,
    "b": 249
  },
  "hsl": {
    "h": 231.081,
    "s": 92.5,
    "l": 68.627
  },
  "oklch": {
    "l": 0.63046,
    "c": 0.18809,
    "h": 272.4
  },
  "luminance": 0.23772
}

Semantic roles & 50–950 ramp

primary

#657BF9

secondary

#F3ECC7

accent

#C300E6

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#0F0E18

muted

#7F7E86

Preview Lab

Preview with #657BF9

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

Preview Lab → · Contrast checker → · Palette generator →