#657DBB#657DBB

#657DBB is a mid, moderate blue. Relative luminance 0.210; OKLCH L 59.7% C 0.099 H 267.3°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#657DBB
RGB	rgb(101, 125, 187)
HSL	hsl(223, 39%, 56%)
HSV	hsv(223, 46%, 73%)
CMYK	cmyk(46%, 33.2%, 0%, 26.7%)
CIE-LAB	lab(52.97, 8.15, -35.30)
CIE-LCH	lch(52.97, 36.23, 282.99°)
OKLab	oklab(59.74% -0.0047 -0.0991)
OKLCH	oklch(59.74% 0.099 267.3)
XYZ	xyz(21.6672, 21.0205, 49.9197)
Luminance	0.2102 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657DBB #BBA365

analogous

#65A8BB #657DBB #7865BB

triadic

#657DBB #BB657D #7DBB65

tetradic

#657DBB #BB65A8 #BBA365 #65BB78

square

#657DBB #BB65A8 #BBA365 #65BB78

split-complementary

#657DBB #BB7865 #A8BB65

monochromatic

#334573 #455E9D #657DBB #8FA1CE #BAC5E0

Accessibility & contrast

On white

4.04

#657DBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#657DBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657DBB

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657DBB	#FFFFFF	#000000	##000000
##657DBB	1.00	4.04	5.20	5.20
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.20	21.00	1.00	1.00
##000000	5.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6683BE

Deuteranopia (green-blind)

#5E7BBA

Tritanopia (blue-blind)

#458A93

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #657dbb;
/* rgb */ color: rgb(101, 125, 187);
/* oklch */ color: oklch(59.7% 0.099 267.3);

Tailwind

colors: {
  custom: {
    50: '#95a2cf',
    500: '#657dbb',
    950: '#000000',
  },
}

SCSS

$custom: #657dbb;
$custom-light: #95a2cf;
$custom-dark: #000000;

JSON

{
  "hex": "#657dbb",
  "rgb": {
    "r": 101,
    "g": 125,
    "b": 187
  },
  "hsl": {
    "h": 223.256,
    "s": 38.739,
    "l": 56.471
  },
  "oklch": {
    "l": 0.59735,
    "c": 0.09923,
    "h": 267.3
  },
  "luminance": 0.21022
}

Semantic roles & 50–950 ramp

primary

#657DBB

secondary

#D0C6AC

accent

#AE59CF

background

#F9F9FC

surface

#F2F2F9

border

#CCCCD2

text

#0E0F14

muted

#7E7E82

Preview Lab

Preview with #657DBB

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

Preview Lab → · Contrast checker → · Palette generator →