#657CB1#657CB1

#657CB1 is a mid, moderate blue. Relative luminance 0.204; OKLCH L 59.0% C 0.086 H 265.9°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#657CB1
RGB	rgb(101, 124, 177)
HSL	hsl(222, 33%, 55%)
HSV	hsv(222, 43%, 69%)
CMYK	cmyk(42.9%, 29.9%, 0%, 30.6%)
CIE-LAB	lab(52.24, 5.77, -30.70)
CIE-LCH	lch(52.24, 31.24, 280.64°)
OKLab	oklab(59.01% -0.0062 -0.0858)
OKLCH	oklch(59.01% 0.086 265.9)
XYZ	xyz(20.5078, 20.3552, 44.4348)
Luminance	0.2036 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657CB1 #B19A65

analogous

#65A2B1 #657CB1 #7465B1

triadic

#657CB1 #B1657C #7CB165

tetradic

#657CB1 #B165A2 #B19A65 #65B174

square

#657CB1 #B165A2 #B19A65 #65B174

split-complementary

#657CB1 #B17465 #A2B165

monochromatic

#344467 #495E90 #657CB1 #8E9FC6 #B6C1DA

Accessibility & contrast

On white

4.14

#657CB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.07

#657CB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657CB1

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657CB1	#FFFFFF	#000000	##000000
##657CB1	1.00	4.14	5.07	5.07
#FFFFFF	4.14	1.00	21.00	21.00
#000000	5.07	21.00	1.00	1.00
##000000	5.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6980B3

Deuteranopia (green-blind)

#6279B0

Tritanopia (blue-blind)

#4A878F

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #657cb1;
/* rgb */ color: rgb(101, 124, 177);
/* oklch */ color: oklch(59.0% 0.086 265.9);

Tailwind

colors: {
  custom: {
    50: '#94a1c8',
    500: '#657cb1',
    950: '#000000',
  },
}

SCSS

$custom: #657cb1;
$custom-light: #94a1c8;
$custom-dark: #000000;

JSON

{
  "hex": "#657cb1",
  "rgb": {
    "r": 101,
    "g": 124,
    "b": 177
  },
  "hsl": {
    "h": 221.842,
    "s": 32.759,
    "l": 54.51
  },
  "oklch": {
    "l": 0.59013,
    "c": 0.08604,
    "h": 265.9
  },
  "luminance": 0.20356
}

Semantic roles & 50–950 ramp

primary

#657CB1

secondary

#C9BFA9

accent

#A95FC9

background

#F9F9FC

surface

#F2F2F8

border

#CCCCD1

text

#0D0F13

muted

#7E7E82

Preview Lab

Preview with #657CB1

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

Preview Lab → · Contrast checker → · Palette generator →