#657CB3#657CB3

#657CB3 is a mid, moderate blue. Relative luminance 0.204; OKLCH L 59.1% C 0.089 H 266.4°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#657CB3
RGB	rgb(101, 124, 179)
HSL	hsl(222, 34%, 55%)
HSV	hsv(222, 44%, 70%)
CMYK	cmyk(43.6%, 30.7%, 0%, 29.8%)
CIE-LAB	lab(52.33, 6.36, -31.71)
CIE-LCH	lch(52.33, 32.34, 281.34°)
OKLab	oklab(59.11% -0.0056 -0.0887)
OKLCH	oklch(59.11% 0.089 266.4)
XYZ	xyz(20.7086, 20.4355, 45.4924)
Luminance	0.2044 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657CB3 #B39C65

analogous

#65A3B3 #657CB3 #7565B3

triadic

#657CB3 #B3657C #7CB365

tetradic

#657CB3 #B365A3 #B39C65 #65B375

square

#657CB3 #B365A3 #B39C65 #65B375

split-complementary

#657CB3 #B37565 #A3B365

monochromatic

#34446A #485E93 #657CB3 #8E9FC7 #B7C2DB

Accessibility & contrast

On white

4.13

#657CB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#657CB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657CB3

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657CB3	#FFFFFF	#000000	##000000
##657CB3	1.00	4.13	5.09	5.09
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6881B5

Deuteranopia (green-blind)

#617AB2

Tritanopia (blue-blind)

#498790

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #657cb3;
/* rgb */ color: rgb(101, 124, 179);
/* oklch */ color: oklch(59.1% 0.089 266.4);

Tailwind

colors: {
  custom: {
    50: '#94a1ca',
    500: '#657cb3',
    950: '#000000',
  },
}

SCSS

$custom: #657cb3;
$custom-light: #94a1ca;
$custom-dark: #000000;

JSON

{
  "hex": "#657cb3",
  "rgb": {
    "r": 101,
    "g": 124,
    "b": 179
  },
  "hsl": {
    "h": 222.308,
    "s": 33.913,
    "l": 54.902
  },
  "oklch": {
    "l": 0.59112,
    "c": 0.08893,
    "h": 266.4
  },
  "luminance": 0.20437
}

Semantic roles & 50–950 ramp

primary

#657CB3

secondary

#CAC1A9

accent

#AA5ECA

background

#F9F9FC

surface

#F2F2F8

border

#CCCCD1

text

#0D0F13

muted

#7E7E82

Preview Lab

Preview with #657CB3

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

Preview Lab → · Contrast checker → · Palette generator →