#657BCF#657BCF

#657BCF is a mid, vivid blue. Relative luminance 0.214; OKLCH L 60.4% C 0.130 H 271.0°. Best body text is #000000 at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#657BCF
RGB	rgb(101, 123, 207)
HSL	hsl(228, 52%, 60%)
HSV	hsv(228, 51%, 81%)
CMYK	cmyk(51.2%, 40.6%, 0%, 18.8%)
CIE-LAB	lab(53.42, 15.51, -45.99)
CIE-LCH	lch(53.42, 48.54, 288.63°)
OKLab	oklab(60.41% 0.0023 -0.1303)
OKLCH	oklch(60.41% 0.13 271)
XYZ	xyz(23.7086, 21.4361, 61.9076)
Luminance	0.2144 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657BCF #CFB965

analogous

#65B0CF #657BCF #8465CF

triadic

#657BCF #CF657B #7BCF65

tetradic

#657BCF #CF65B0 #CFB965 #65CF84

square

#657BCF #CF65B0 #CFB965 #65CF84

split-complementary

#657BCF #CF8465 #B0CF65

monochromatic

#2C408D #3B56BC #657BCF #94A3DE #C2CBEC

Accessibility & contrast

On white

3.97

#657BCF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.29

#657BCF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657BCF

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657BCF	#FFFFFF	#000000	##000000
##657BCF	1.00	3.97	5.29	5.29
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.29	21.00	1.00	1.00
##000000	5.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5984D2

Deuteranopia (green-blind)

#4E7BCD

Tritanopia (blue-blind)

#368D9B

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #657bcf;
/* rgb */ color: rgb(101, 123, 207);
/* oklch */ color: oklch(60.4% 0.130 271.0);

Tailwind

colors: {
  custom: {
    50: '#97a0de',
    500: '#657bcf',
    950: '#000000',
  },
}

SCSS

$custom: #657bcf;
$custom-light: #97a0de;
$custom-dark: #000000;

JSON

{
  "hex": "#657bcf",
  "rgb": {
    "r": 101,
    "g": 123,
    "b": 207
  },
  "hsl": {
    "h": 227.547,
    "s": 52.475,
    "l": 60.392
  },
  "oklch": {
    "l": 0.60409,
    "c": 0.13031,
    "h": 271
  },
  "luminance": 0.21438
}

Semantic roles & 50–950 ramp

primary

#657BCF

secondary

#DCD4B4

accent

#A026C0

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #657BCF

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

Preview Lab → · Contrast checker → · Palette generator →