#657CCB#657CCB

#657CCB is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.4% C 0.123 H 270.1°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#657CCB
RGB	rgb(101, 124, 203)
HSL	hsl(226, 50%, 60%)
HSV	hsv(226, 50%, 80%)
CMYK	cmyk(50.2%, 38.9%, 0%, 20.4%)
CIE-LAB	lab(53.48, 13.65, -43.63)
CIE-LCH	lch(53.48, 45.71, 287.38°)
OKLab	oklab(60.39% 0.0003 -0.1234)
OKLCH	oklch(60.39% 0.123 270.1)
XYZ	xyz(23.3505, 21.4923, 59.4063)
Luminance	0.2149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657CCB #CBB465

analogous

#65AFCB #657CCB #8165CB

triadic

#657CCB #CB657C #7CCB65

tetradic

#657CCB #CB65AF #CBB465 #65CB81

square

#657CCB #CB65AF #CBB465 #65CB81

split-complementary

#657CCB #CB8165 #AFCB65

monochromatic

#2E4288 #3D58B6 #657CCB #93A3DA #C1CAEA

Accessibility & contrast

On white

3.96

#657CCB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#657CCB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657CCB

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657CCB	#FFFFFF	#000000	##000000
##657CCB	1.00	3.96	5.30	5.30
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D84CE

Deuteranopia (green-blind)

#527CC9

Tritanopia (blue-blind)

#398D9A

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #657ccb;
/* rgb */ color: rgb(101, 124, 203);
/* oklch */ color: oklch(60.4% 0.123 270.1);

Tailwind

colors: {
  custom: {
    50: '#97a1db',
    500: '#657ccb',
    950: '#000000',
  },
}

SCSS

$custom: #657ccb;
$custom-light: #97a1db;
$custom-dark: #000000;

JSON

{
  "hex": "#657ccb",
  "rgb": {
    "r": 101,
    "g": 124,
    "b": 203
  },
  "hsl": {
    "h": 226.471,
    "s": 49.515,
    "l": 59.608
  },
  "oklch": {
    "l": 0.60388,
    "c": 0.12336,
    "h": 270.1
  },
  "luminance": 0.21494
}

Semantic roles & 50–950 ramp

primary

#657CCB

secondary

#DAD1B2

accent

#BA4FD9

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #657CCB

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

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