#657CA3#657CA3

#657CA3 is a mid, moderate blue. Relative luminance 0.198; OKLCH L 58.4% C 0.066 H 260.8°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#657CA3
RGB	rgb(101, 124, 163)
HSL	hsl(218, 25%, 52%)
HSV	hsv(218, 38%, 64%)
CMYK	cmyk(38%, 23.9%, 0%, 36.1%)
CIE-LAB	lab(51.64, 1.74, -23.52)
CIE-LCH	lch(51.64, 23.59, 274.24°)
OKLab	oklab(58.35% -0.0106 -0.0652)
OKLCH	oklch(58.35% 0.066 260.8)
XYZ	xyz(19.1833, 19.8254, 37.4591)
Luminance	0.1983 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657CA3 #A38C65

analogous

#659BA3 #657CA3 #6D65A3

triadic

#657CA3 #A3657C #7CA365

tetradic

#657CA3 #A3659B #A38C65 #65A36D

square

#657CA3 #A3659B #A38C65 #65A36D

split-complementary

#657CA3 #A36D65 #9BA365

monochromatic

#354259 #4C5F7F #657CA3 #8B9DBA #B2BDD1

Accessibility & contrast

On white

4.23

#657CA3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#657CA3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657CA3

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657CA3	#FFFFFF	#000000	##000000
##657CA3	1.00	4.23	4.97	4.97
#FFFFFF	4.23	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)

#6E7EA5

Deuteranopia (green-blind)

#6878A2

Tritanopia (blue-blind)

#518489

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #657ca3;
/* rgb */ color: rgb(101, 124, 163);
/* oklch */ color: oklch(58.4% 0.066 260.8);

Tailwind

colors: {
  custom: {
    50: '#93a1be',
    500: '#657ca3',
    950: '#000000',
  },
}

SCSS

$custom: #657ca3;
$custom-light: #93a1be;
$custom-dark: #000000;

JSON

{
  "hex": "#657ca3",
  "rgb": {
    "r": 101,
    "g": 124,
    "b": 163
  },
  "hsl": {
    "h": 217.742,
    "s": 25.203,
    "l": 51.765
  },
  "oklch": {
    "l": 0.5835,
    "c": 0.06608,
    "h": 260.8
  },
  "luminance": 0.19826
}

Semantic roles & 50–950 ramp

primary

#657CA3

secondary

#C0B5A4

accent

#A066C2

background

#F9F9FB

surface

#F1F2F6

border

#CBCCD0

text

#0D0F12

muted

#7E7E81

Preview Lab

Preview with #657CA3

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

Preview Lab → · Contrast checker → · Palette generator →