#657FEA#657FEA

#657FEA is a light, vivid blue. Relative luminance 0.239; OKLCH L 62.8% C 0.163 H 270.8°. Best body text is #000000 at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#657FEA
RGB	rgb(101, 127, 234)
HSL	hsl(228, 76%, 66%)
HSV	hsv(228, 57%, 92%)
CMYK	cmyk(56.8%, 45.7%, 0%, 8.2%)
CIE-LAB	lab(55.97, 21.69, -57.11)
CIE-LCH	lch(55.97, 61.09, 290.79°)
OKLab	oklab(62.84% 0.0023 -0.1628)
OKLCH	oklch(62.84% 0.163 270.8)
XYZ	xyz(27.8026, 23.8838, 80.9709)
Luminance	0.2389 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657FEA #EAD065

analogous

#65C1EA #657FEA #8D65EA

triadic

#657FEA #EA657F #7FEA65

tetradic

#657FEA #EA65C1 #EAD065 #65EA8D

square

#657FEA #EA65C1 #EAD065 #65EA8D

split-complementary

#657FEA #EA8D65 #C1EA65

monochromatic

#1A39BB #2F52E3 #657FEA #9BACF1 #D1D9F9

Accessibility & contrast

On white

3.63

#657FEA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.78

#657FEA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657FEA

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657FEA	#FFFFFF	#000000	##000000
##657FEA	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)

#4D8CEE

Deuteranopia (green-blind)

#3A81E8

Tritanopia (blue-blind)

#0097A9

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #657fea;
/* rgb */ color: rgb(101, 127, 234);
/* oklch */ color: oklch(62.8% 0.163 270.8);

Tailwind

colors: {
  custom: {
    50: '#9ba3f1',
    500: '#657fea',
    950: '#000000',
  },
}

SCSS

$custom: #657fea;
$custom-light: #9ba3f1;
$custom-dark: #000000;

JSON

{
  "hex": "#657fea",
  "rgb": {
    "r": 101,
    "g": 127,
    "b": 234
  },
  "hsl": {
    "h": 228.271,
    "s": 76,
    "l": 65.686
  },
  "oklch": {
    "l": 0.62843,
    "c": 0.16287,
    "h": 270.8
  },
  "luminance": 0.23886
}

Semantic roles & 50–950 ramp

primary

#657FEA

secondary

#ECE3BF

accent

#B10DD8

background

#FAFAFE

surface

#F3F3FD

border

#CDCDD5

text

#0F0F17

muted

#7F7F85

Preview Lab

Preview with #657FEA

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

Preview Lab → · Contrast checker → · Palette generator →