#657EEF#657EEF

#657EEF is a light, vivid blue. Relative luminance 0.239; OKLCH L 63.0% C 0.171 H 271.3°. Best body text is #000000 at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#657EEF
RGB	rgb(101, 126, 239)
HSL	hsl(229, 81%, 67%)
HSV	hsv(229, 58%, 94%)
CMYK	cmyk(57.7%, 47.3%, 0%, 6.3%)
CIE-LAB	lab(56.01, 23.91, -59.84)
CIE-LCH	lch(56.01, 64.44, 291.78°)
OKLab	oklab(62.96% 0.004 -0.1709)
OKLCH	oklch(62.96% 0.171 271.3)
XYZ	xyz(28.4025, 23.9182, 84.7646)
Luminance	0.2392 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657EEF #EFD665

analogous

#65C3EF #657EEF #9165EF

triadic

#657EEF #EF657E #7EEF65

tetradic

#657EEF #EF65C3 #EFD665 #65EF91

square

#657EEF #EF65C3 #EFD665 #65EF91

split-complementary

#657EEF #EF9165 #C3EF65

monochromatic

#1434C5 #2E50E9 #657EEF #9CACF5 #D4DBFB

Accessibility & contrast

On white

3.63

#657EEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.78

#657EEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657EEF

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657EEF	#FFFFFF	#000000	##000000
##657EEF	1.00	3.63	5.78	5.78
#FFFFFF	3.63	1.00	21.00	21.00
#000000	5.78	21.00	1.00	1.00
##000000	5.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#478DF3

Deuteranopia (green-blind)

#3180ED

Tritanopia (blue-blind)

#0097AB

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #657eef;
/* rgb */ color: rgb(101, 126, 239);
/* oklch */ color: oklch(63.0% 0.171 271.3);

Tailwind

colors: {
  custom: {
    50: '#9ba3f5',
    500: '#657eef',
    950: '#000000',
  },
}

SCSS

$custom: #657eef;
$custom-light: #9ba3f5;
$custom-dark: #000000;

JSON

{
  "hex": "#657eef",
  "rgb": {
    "r": 101,
    "g": 126,
    "b": 239
  },
  "hsl": {
    "h": 229.13,
    "s": 81.176,
    "l": 66.667
  },
  "oklch": {
    "l": 0.62963,
    "c": 0.17093,
    "h": 271.3
  },
  "luminance": 0.2392
}

Semantic roles & 50–950 ramp

primary

#657EEF

secondary

#EEE6C2

accent

#B708DE

background

#FAF9FF

surface

#F4F2FE

border

#CECCD6

text

#0F0F17

muted

#7F7E85

Preview Lab

Preview with #657EEF

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

Preview Lab → · Contrast checker → · Palette generator →