#657CEF#657CEF

#657CEF is a light, vivid blue. Relative luminance 0.234; OKLCH L 62.6% C 0.173 H 272.0°. Best body text is #000000 at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#657CEF
RGB	rgb(101, 124, 239)
HSL	hsl(230, 81%, 67%)
HSV	hsv(230, 58%, 94%)
CMYK	cmyk(57.7%, 48.1%, 0%, 6.3%)
CIE-LAB	lab(55.49, 25.12, -60.66)
CIE-LCH	lch(55.49, 65.65, 292.49°)
OKLab	oklab(62.58% 0.006 -0.1733)
OKLCH	oklch(62.58% 0.173 272)
XYZ	xyz(28.1493, 23.4118, 84.6802)
Luminance	0.2341 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657CEF #EFD865

analogous

#65C1EF #657CEF #9365EF

triadic

#657CEF #EF657C #7CEF65

tetradic

#657CEF #EF65C1 #EFD865 #65EF93

square

#657CEF #EF65C1 #EFD865 #65EF93

split-complementary

#657CEF #EF9365 #C1EF65

monochromatic

#1432C5 #2E4DE9 #657CEF #9CABF5 #D4DAFB

Accessibility & contrast

On white

3.70

#657CEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.68

#657CEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657CEF

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657CEF	#FFFFFF	#000000	##000000
##657CEF	1.00	3.70	5.68	5.68
#FFFFFF	3.70	1.00	21.00	21.00
#000000	5.68	21.00	1.00	1.00
##000000	5.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#428BF3

Deuteranopia (green-blind)

#2B7FED

Tritanopia (blue-blind)

#0096AA

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #657cef;
/* rgb */ color: rgb(101, 124, 239);
/* oklch */ color: oklch(62.6% 0.173 272.0);

Tailwind

colors: {
  custom: {
    50: '#9ba1f5',
    500: '#657cef',
    950: '#000000',
  },
}

SCSS

$custom: #657cef;
$custom-light: #9ba1f5;
$custom-dark: #000000;

JSON

{
  "hex": "#657cef",
  "rgb": {
    "r": 101,
    "g": 124,
    "b": 239
  },
  "hsl": {
    "h": 230,
    "s": 81.176,
    "l": 66.667
  },
  "oklch": {
    "l": 0.62575,
    "c": 0.17342,
    "h": 272
  },
  "luminance": 0.23414
}

Semantic roles & 50–950 ramp

primary

#657CEF

secondary

#EEE7C2

accent

#BA08DE

background

#FAF9FF

surface

#F4F2FE

border

#CECCD6

text

#0F0E17

muted

#7F7E85

Preview Lab

Preview with #657CEF

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

Preview Lab → · Contrast checker → · Palette generator →