#657BCB#657BCB

#657BCB is a mid, vivid blue. Relative luminance 0.212; OKLCH L 60.2% C 0.125 H 270.7°. Best body text is #000000 at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#657BCB
RGB	rgb(101, 123, 203)
HSL	hsl(227, 50%, 60%)
HSV	hsv(227, 50%, 80%)
CMYK	cmyk(50.2%, 39.4%, 0%, 20.4%)
CIE-LAB	lab(53.21, 14.26, -44.05)
CIE-LCH	lch(53.21, 46.30, 287.93°)
OKLab	oklab(60.18% 0.0015 -0.1246)
OKLCH	oklch(60.18% 0.125 270.7)
XYZ	xyz(23.2258, 21.2429, 59.3648)
Luminance	0.2124 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657BCB #CBB565

analogous

#65AECB #657BCB #8265CB

triadic

#657BCB #CB657B #7BCB65

tetradic

#657BCB #CB65AE #CBB565 #65CB82

square

#657BCB #CB65AE #CBB565 #65CB82

split-complementary

#657BCB #CB8265 #AECB65

monochromatic

#2E4188 #3D57B6 #657BCB #93A2DA #C1C9EA

Accessibility & contrast

On white

4.00

#657BCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.25

#657BCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657BCB

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657BCB	#FFFFFF	#000000	##000000
##657BCB	1.00	4.00	5.25	5.25
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.25	21.00	1.00	1.00
##000000	5.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C84CE

Deuteranopia (green-blind)

#517BC9

Tritanopia (blue-blind)

#398C99

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #657bcb;
/* rgb */ color: rgb(101, 123, 203);
/* oklch */ color: oklch(60.2% 0.125 270.7);

Tailwind

colors: {
  custom: {
    50: '#97a0db',
    500: '#657bcb',
    950: '#000000',
  },
}

SCSS

$custom: #657bcb;
$custom-light: #97a0db;
$custom-dark: #000000;

JSON

{
  "hex": "#657bcb",
  "rgb": {
    "r": 101,
    "g": 123,
    "b": 203
  },
  "hsl": {
    "h": 227.059,
    "s": 49.515,
    "l": 59.608
  },
  "oklch": {
    "l": 0.6018,
    "c": 0.12463,
    "h": 270.7
  },
  "luminance": 0.21244
}

Semantic roles & 50–950 ramp

primary

#657BCB

secondary

#DAD1B2

accent

#BB4FD9

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #657BCB

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

Preview Lab → · Contrast checker → · Palette generator →