#657FCB#657FCB

#657FCB is a mid, moderate blue. Relative luminance 0.223; OKLCH L 61.0% C 0.120 H 268.4°. Best body text is #000000 at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#657FCB
RGB	rgb(101, 127, 203)
HSL	hsl(225, 50%, 60%)
HSV	hsv(225, 50%, 80%)
CMYK	cmyk(50.2%, 37.4%, 0%, 20.4%)
CIE-LAB	lab(54.30, 11.84, -42.34)
CIE-LCH	lch(54.30, 43.97, 285.63°)
OKLab	oklab(61.02% -0.0033 -0.1196)
OKLCH	oklch(61.02% 0.12 268.4)
XYZ	xyz(23.7322, 22.2557, 59.5336)
Luminance	0.2226 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657FCB #CBB165

analogous

#65B2CB #657FCB #7E65CB

triadic

#657FCB #CB657F #7FCB65

tetradic

#657FCB #CB65B2 #CBB165 #65CB7E

square

#657FCB #CB65B2 #CBB165 #65CB7E

split-complementary

#657FCB #CB7E65 #B2CB65

monochromatic

#2E4588 #3D5CB6 #657FCB #93A5DA #C1CBEA

Accessibility & contrast

On white

3.85

#657FCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.45

#657FCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657FCB

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657FCB	#FFFFFF	#000000	##000000
##657FCB	1.00	3.85	5.45	5.45
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.45	21.00	1.00	1.00
##000000	5.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6287CE

Deuteranopia (green-blind)

#577EC9

Tritanopia (blue-blind)

#398F9B

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #657fcb;
/* rgb */ color: rgb(101, 127, 203);
/* oklch */ color: oklch(61.0% 0.120 268.4);

Tailwind

colors: {
  custom: {
    50: '#97a3db',
    500: '#657fcb',
    950: '#000000',
  },
}

SCSS

$custom: #657fcb;
$custom-light: #97a3db;
$custom-dark: #000000;

JSON

{
  "hex": "#657fcb",
  "rgb": {
    "r": 101,
    "g": 127,
    "b": 203
  },
  "hsl": {
    "h": 224.706,
    "s": 49.515,
    "l": 59.608
  },
  "oklch": {
    "l": 0.61015,
    "c": 0.11963,
    "h": 268.4
  },
  "luminance": 0.22257
}

Semantic roles & 50–950 ramp

primary

#657FCB

secondary

#DAD0B2

accent

#B64FD9

background

#F9FAFD

surface

#F2F3FB

border

#CCCDD4

text

#0E0F15

muted

#7E7F83

Preview Lab

Preview with #657FCB

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

Preview Lab → · Contrast checker → · Palette generator →