#657CC0#657CC0

#657CC0 is a mid, moderate blue. Relative luminance 0.210; OKLCH L 59.8% C 0.108 H 268.8°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#657CC0
RGB	rgb(101, 124, 192)
HSL	hsl(225, 42%, 57%)
HSV	hsv(225, 47%, 75%)
CMYK	cmyk(47.4%, 35.4%, 0%, 24.7%)
CIE-LAB	lab(52.93, 10.26, -38.22)
CIE-LCH	lch(52.93, 39.58, 285.03°)
OKLab	oklab(59.78% -0.0022 -0.1076)
OKLCH	oklch(59.78% 0.108 268.8)
XYZ	xyz(22.0859, 20.9864, 52.7460)
Luminance	0.2099 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657CC0 #C0A965

analogous

#65AAC0 #657CC0 #7C65C0

triadic

#657CC0 #C0657C #7CC065

tetradic

#657CC0 #C065AA #C0A965 #65C07C

square

#657CC0 #C065AA #C0A965 #65C07C

split-complementary

#657CC0 #C07C65 #AAC065

monochromatic

#324479 #435CA5 #657CC0 #90A1D2 #BCC6E4

Accessibility & contrast

On white

4.04

#657CC0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#657CC0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657CC0

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657CC0	#FFFFFF	#000000	##000000
##657CC0	1.00	4.04	5.20	5.20
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.20	21.00	1.00	1.00
##000000	5.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6383C3

Deuteranopia (green-blind)

#5A7BBE

Tritanopia (blue-blind)

#428A95

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #657cc0;
/* rgb */ color: rgb(101, 124, 192);
/* oklch */ color: oklch(59.8% 0.108 268.8);

Tailwind

colors: {
  custom: {
    50: '#95a1d3',
    500: '#657cc0',
    950: '#000000',
  },
}

SCSS

$custom: #657cc0;
$custom-light: #95a1d3;
$custom-dark: #000000;

JSON

{
  "hex": "#657cc0",
  "rgb": {
    "r": 101,
    "g": 124,
    "b": 192
  },
  "hsl": {
    "h": 224.835,
    "s": 41.935,
    "l": 57.451
  },
  "oklch": {
    "l": 0.59784,
    "c": 0.10763,
    "h": 268.8
  },
  "luminance": 0.20988
}

Semantic roles & 50–950 ramp

primary

#657CC0

secondary

#D3C9AE

accent

#B256D2

background

#F9F9FD

surface

#F2F2FA

border

#CCCCD3

text

#0E0F14

muted

#7E7E83

Preview Lab

Preview with #657CC0

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

Preview Lab → · Contrast checker → · Palette generator →