#657AEB#657AEB

#657AEB is a mid, vivid blue. Relative luminance 0.227; OKLCH L 61.9% C 0.171 H 272.6°. Best body text is #000000 at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#657AEB
RGB	rgb(101, 122, 235)
HSL	hsl(231, 77%, 66%)
HSV	hsv(231, 57%, 92%)
CMYK	cmyk(57%, 48.1%, 0%, 7.8%)
CIE-LAB	lab(54.74, 25.04, -59.64)
CIE-LCH	lch(54.74, 64.68, 292.77°)
OKLab	oklab(61.93% 0.0076 -0.1703)
OKLCH	oklch(61.93% 0.171 272.6)
XYZ	xyz(27.3168, 22.6819, 81.5197)
Luminance	0.2268 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657AEB #EBD665

analogous

#65BDEB #657AEB #9365EB

triadic

#657AEB #EB657A #7AEB65

tetradic

#657AEB #EB65BD #EBD665 #65EB93

square

#657AEB #EB65BD #EBD665 #65EB93

split-complementary

#657AEB #EB9365 #BDEB65

monochromatic

#1932BD #2F4BE4 #657AEB #9BA9F2 #D1D8F9

Accessibility & contrast

On white

3.79

#657AEB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.54

#657AEB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657AEB

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657AEB	#FFFFFF	#000000	##000000
##657AEB	1.00	3.79	5.54	5.54
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.54	21.00	1.00	1.00
##000000	5.54	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4289EF

Deuteranopia (green-blind)

#2D7DE9

Tritanopia (blue-blind)

#0093A7

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #657aeb;
/* rgb */ color: rgb(101, 122, 235);
/* oklch */ color: oklch(61.9% 0.171 272.6);

Tailwind

colors: {
  custom: {
    50: '#9ba0f2',
    500: '#657aeb',
    950: '#000000',
  },
}

SCSS

$custom: #657aeb;
$custom-light: #9ba0f2;
$custom-dark: #000000;

JSON

{
  "hex": "#657aeb",
  "rgb": {
    "r": 101,
    "g": 122,
    "b": 235
  },
  "hsl": {
    "h": 230.597,
    "s": 77.011,
    "l": 65.882
  },
  "oklch": {
    "l": 0.61928,
    "c": 0.1705,
    "h": 272.6
  },
  "luminance": 0.22684
}

Semantic roles & 50–950 ramp

primary

#657AEB

secondary

#ECE5C0

accent

#B90CD9

background

#FAF9FE

surface

#F4F2FD

border

#CECCD5

text

#0F0E17

muted

#7F7E85

Preview Lab

Preview with #657AEB

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

Preview Lab → · Contrast checker → · Palette generator →