#657BC0#657BC0

#657BC0 is a mid, moderate blue. Relative luminance 0.207; OKLCH L 59.6% C 0.109 H 269.5°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#657BC0
RGB	rgb(101, 123, 192)
HSL	hsl(225, 42%, 57%)
HSV	hsv(225, 47%, 75%)
CMYK	cmyk(47.4%, 35.9%, 0%, 24.7%)
CIE-LAB	lab(52.66, 10.86, -38.65)
CIE-LCH	lch(52.66, 40.15, 285.70°)
OKLab	oklab(59.57% -0.001 -0.1089)
OKLCH	oklch(59.57% 0.109 269.5)
XYZ	xyz(21.9612, 20.7371, 52.7044)
Luminance	0.2074 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657BC0 #C0AA65

analogous

#65A8C0 #657BC0 #7D65C0

triadic

#657BC0 #C0657B #7BC065

tetradic

#657BC0 #C065A8 #C0AA65 #65C07D

square

#657BC0 #C065A8 #C0AA65 #65C07D

split-complementary

#657BC0 #C07D65 #A8C065

monochromatic

#324379 #435BA5 #657BC0 #90A0D2 #BCC5E4

Accessibility & contrast

On white

4.08

#657BC0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#657BC0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657BC0

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657BC0	#FFFFFF	#000000	##000000
##657BC0	1.00	4.08	5.15	5.15
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.15	21.00	1.00	1.00
##000000	5.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6182C3

Deuteranopia (green-blind)

#587ABE

Tritanopia (blue-blind)

#428994

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #657bc0;
/* rgb */ color: rgb(101, 123, 192);
/* oklch */ color: oklch(59.6% 0.109 269.5);

Tailwind

colors: {
  custom: {
    50: '#95a0d3',
    500: '#657bc0',
    950: '#000000',
  },
}

SCSS

$custom: #657bc0;
$custom-light: #95a0d3;
$custom-dark: #000000;

JSON

{
  "hex": "#657bc0",
  "rgb": {
    "r": 101,
    "g": 123,
    "b": 192
  },
  "hsl": {
    "h": 225.495,
    "s": 41.935,
    "l": 57.451
  },
  "oklch": {
    "l": 0.59572,
    "c": 0.10887,
    "h": 269.5
  },
  "luminance": 0.20738
}

Semantic roles & 50–950 ramp

primary

#657BC0

secondary

#D3CAAE

accent

#B456D2

background

#F9F9FD

surface

#F2F2FA

border

#CCCCD3

text

#0E0E14

muted

#7E7E83

Preview Lab

Preview with #657BC0

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

Preview Lab → · Contrast checker → · Palette generator →