#657CCC#657CCC

#657CCC is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.4% C 0.125 H 270.2°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#657CCC
RGB	rgb(101, 124, 204)
HSL	hsl(227, 50%, 60%)
HSV	hsv(227, 50%, 80%)
CMYK	cmyk(50.5%, 39.2%, 0%, 20%)
CIE-LAB	lab(53.54, 13.96, -44.11)
CIE-LCH	lch(53.54, 46.27, 287.56°)
OKLab	oklab(60.44% 0.0005 -0.1248)
OKLCH	oklch(60.44% 0.125 270.2)
XYZ	xyz(23.4700, 21.5401, 60.0360)
Luminance	0.2154 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657CCC #CCB565

analogous

#65B0CC #657CCC #8265CC

triadic

#657CCC #CC657C #7CCC65

tetradic

#657CCC #CC65B0 #CCB565 #65CC82

square

#657CCC #CC65B0 #CCB565 #65CC82

split-complementary

#657CCC #CC8265 #B0CC65

monochromatic

#2D4289 #3D58B7 #657CCC #93A3DB #C1CAEA

Accessibility & contrast

On white

3.96

#657CCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#657CCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657CCC

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657CCC	#FFFFFF	#000000	##000000
##657CCC	1.00	3.96	5.31	5.31
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D85CF

Deuteranopia (green-blind)

#527CCA

Tritanopia (blue-blind)

#388D9A

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #657ccc;
/* rgb */ color: rgb(101, 124, 204);
/* oklch */ color: oklch(60.4% 0.125 270.2);

Tailwind

colors: {
  custom: {
    50: '#97a1dc',
    500: '#657ccc',
    950: '#000000',
  },
}

SCSS

$custom: #657ccc;
$custom-light: #97a1dc;
$custom-dark: #000000;

JSON

{
  "hex": "#657ccc",
  "rgb": {
    "r": 101,
    "g": 124,
    "b": 204
  },
  "hsl": {
    "h": 226.602,
    "s": 50.244,
    "l": 59.804
  },
  "oklch": {
    "l": 0.60444,
    "c": 0.12478,
    "h": 270.2
  },
  "luminance": 0.21542
}

Semantic roles & 50–950 ramp

primary

#657CCC

secondary

#DAD1B2

accent

#BB4EDA

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #657CCC

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

Preview Lab → · Contrast checker → · Palette generator →