#657AB1#657AB1

#657AB1 is a mid, moderate blue. Relative luminance 0.199; OKLCH L 58.6% C 0.088 H 267.7°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#657AB1
RGB	rgb(101, 122, 177)
HSL	hsl(223, 33%, 55%)
HSV	hsv(223, 43%, 69%)
CMYK	cmyk(42.9%, 31.1%, 0%, 30.6%)
CIE-LAB	lab(51.68, 6.96, -31.57)
CIE-LCH	lch(51.68, 32.33, 282.44°)
OKLab	oklab(58.58% -0.0036 -0.0883)
OKLCH	oklch(58.58% 0.088 267.7)
XYZ	xyz(20.2597, 19.8590, 44.3521)
Luminance	0.1986 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657AB1 #B19C65

analogous

#65A0B1 #657AB1 #7665B1

triadic

#657AB1 #B1657A #7AB165

tetradic

#657AB1 #B165A0 #B19C65 #65B176

square

#657AB1 #B165A0 #B19C65 #65B176

split-complementary

#657AB1 #B17665 #A0B165

monochromatic

#344267 #495D90 #657AB1 #8E9DC6 #B6C0DA

Accessibility & contrast

On white

4.22

#657AB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#657AB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657AB1

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657AB1	#FFFFFF	#000000	##000000
##657AB1	1.00	4.22	4.97	4.97
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#677FB3

Deuteranopia (green-blind)

#5F78B0

Tritanopia (blue-blind)

#4B858E

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #657ab1;
/* rgb */ color: rgb(101, 122, 177);
/* oklch */ color: oklch(58.6% 0.088 267.7);

Tailwind

colors: {
  custom: {
    50: '#94a0c8',
    500: '#657ab1',
    950: '#000000',
  },
}

SCSS

$custom: #657ab1;
$custom-light: #94a0c8;
$custom-dark: #000000;

JSON

{
  "hex": "#657ab1",
  "rgb": {
    "r": 101,
    "g": 122,
    "b": 177
  },
  "hsl": {
    "h": 223.421,
    "s": 32.759,
    "l": 54.51
  },
  "oklch": {
    "l": 0.58578,
    "c": 0.08841,
    "h": 267.7
  },
  "luminance": 0.1986
}

Semantic roles & 50–950 ramp

primary

#657AB1

secondary

#C9C0A9

accent

#AC5FC9

background

#F9F9FC

surface

#F2F2F8

border

#CCCCD1

text

#0D0E13

muted

#7E7E82

Preview Lab

Preview with #657AB1

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

Preview Lab → · Contrast checker → · Palette generator →