#657FB1#657FB1

#657FB1 is a mid, moderate blue. Relative luminance 0.211; OKLCH L 59.7% C 0.083 H 263.0°. Best body text is #000000 at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#657FB1
RGB	rgb(101, 127, 177)
HSL	hsl(219, 33%, 55%)
HSV	hsv(219, 43%, 69%)
CMYK	cmyk(42.9%, 28.2%, 0%, 30.6%)
CIE-LAB	lab(53.08, 3.99, -29.39)
CIE-LCH	lch(53.08, 29.66, 277.72°)
OKLab	oklab(59.67% -0.0101 -0.082)
OKLCH	oklch(59.67% 0.083 263)
XYZ	xyz(20.8895, 21.1186, 44.5620)
Luminance	0.2112 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657FB1 #B19765

analogous

#65A5B1 #657FB1 #7165B1

triadic

#657FB1 #B1657F #7FB165

tetradic

#657FB1 #B165A5 #B19765 #65B171

square

#657FB1 #B165A5 #B19765 #65B171

split-complementary

#657FB1 #B17165 #A5B165

monochromatic

#344667 #496190 #657FB1 #8EA1C6 #B6C3DA

Accessibility & contrast

On white

4.02

#657FB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.22

#657FB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657FB1

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657FB1	#FFFFFF	#000000	##000000
##657FB1	1.00	4.02	5.22	5.22
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.22	21.00	1.00	1.00
##000000	5.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D83B3

Deuteranopia (green-blind)

#657CB0

Tritanopia (blue-blind)

#4A8A90

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #657fb1;
/* rgb */ color: rgb(101, 127, 177);
/* oklch */ color: oklch(59.7% 0.083 263.0);

Tailwind

colors: {
  custom: {
    50: '#94a3c8',
    500: '#657fb1',
    950: '#000000',
  },
}

SCSS

$custom: #657fb1;
$custom-light: #94a3c8;
$custom-dark: #000000;

JSON

{
  "hex": "#657fb1",
  "rgb": {
    "r": 101,
    "g": 127,
    "b": 177
  },
  "hsl": {
    "h": 219.474,
    "s": 32.759,
    "l": 54.51
  },
  "oklch": {
    "l": 0.5967,
    "c": 0.08266,
    "h": 263
  },
  "luminance": 0.2112
}

Semantic roles & 50–950 ramp

primary

#657FB1

secondary

#C9BEA9

accent

#A55FC9

background

#F9FAFC

surface

#F2F3F8

border

#CCCDD1

text

#0D0F13

muted

#7E7F82

Preview Lab

Preview with #657FB1

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

Preview Lab → · Contrast checker → · Palette generator →