#657FDD#657FDD

#657FDD is a light, vivid blue. Relative luminance 0.232; OKLCH L 62.0% C 0.145 H 270.1°. Best body text is #000000 at 5.63:1 contrast (WCAG AA passes).

Color values

HEX	#657FDD
RGB	rgb(101, 127, 221)
HSL	hsl(227, 64%, 63%)
HSV	hsv(227, 54%, 87%)
CMYK	cmyk(54.3%, 42.5%, 0%, 13.3%)
CIE-LAB	lab(55.24, 17.52, -51.00)
CIE-LCH	lch(55.24, 53.93, 288.95°)
OKLab	oklab(62.05% 0.0003 -0.1449)
OKLCH	oklch(62.05% 0.145 270.1)
XYZ	xyz(26.0031, 23.1640, 71.4935)
Luminance	0.2317 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657FDD #DDC365

analogous

#65BBDD #657FDD #8765DD

triadic

#657FDD #DD657F #7FDD65

tetradic

#657FDD #DD65BB #DDC365 #65DD87

square

#657FDD #DD65BB #DDC365 #65DD87

split-complementary

#657FDD #DD8765 #BBDD65

monochromatic

#2440A4 #3355D2 #657FDD #97A9E8 #C9D2F3

Accessibility & contrast

On white

3.73

#657FDD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.63

#657FDD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657FDD

5.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657FDD	#FFFFFF	#000000	##000000
##657FDD	1.00	3.73	5.63	5.63
#FFFFFF	3.73	1.00	21.00	21.00
#000000	5.63	21.00	1.00	1.00
##000000	5.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#578AE1

Deuteranopia (green-blind)

#487FDB

Tritanopia (blue-blind)

#2494A3

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #657fdd;
/* rgb */ color: rgb(101, 127, 221);
/* oklch */ color: oklch(62.0% 0.145 270.1);

Tailwind

colors: {
  custom: {
    50: '#99a3e8',
    500: '#657fdd',
    950: '#000000',
  },
}

SCSS

$custom: #657fdd;
$custom-light: #99a3e8;
$custom-dark: #000000;

JSON

{
  "hex": "#657fdd",
  "rgb": {
    "r": 101,
    "g": 127,
    "b": 221
  },
  "hsl": {
    "h": 227,
    "s": 63.83,
    "l": 63.137
  },
  "oklch": {
    "l": 0.62048,
    "c": 0.14493,
    "h": 270.1
  },
  "luminance": 0.23166
}

Semantic roles & 50–950 ramp

primary

#657FDD

secondary

#E4DBB9

accent

#A51ACC

background

#F9FAFE

surface

#F2F3FD

border

#CCCDD5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #657FDD

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

Preview Lab → · Contrast checker → · Palette generator →