#657CBB#657CBB

#657CBB is a mid, moderate blue. Relative luminance 0.208; OKLCH L 59.5% C 0.100 H 268.0°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#657CBB
RGB	rgb(101, 124, 187)
HSL	hsl(224, 39%, 56%)
HSV	hsv(224, 46%, 73%)
CMYK	cmyk(46%, 33.7%, 0%, 26.7%)
CIE-LAB	lab(52.70, 8.75, -35.73)
CIE-LCH	lch(52.70, 36.79, 283.75°)
OKLab	oklab(59.52% -0.0035 -0.1004)
OKLCH	oklch(59.52% 0.1 268)
XYZ	xyz(21.5413, 20.7686, 49.8777)
Luminance	0.2077 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657CBB #BBA465

analogous

#65A7BB #657CBB #7965BB

triadic

#657CBB #BB657C #7CBB65

tetradic

#657CBB #BB65A7 #BBA465 #65BB79

square

#657CBB #BB65A7 #BBA465 #65BB79

split-complementary

#657CBB #BB7965 #A7BB65

monochromatic

#334473 #455D9D #657CBB #8FA0CE #BAC4E0

Accessibility & contrast

On white

4.07

#657CBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#657CBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657CBB

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657CBB	#FFFFFF	#000000	##000000
##657CBB	1.00	4.07	5.15	5.15
#FFFFFF	4.07	1.00	21.00	21.00
#000000	5.15	21.00	1.00	1.00
##000000	5.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6582BE

Deuteranopia (green-blind)

#5C7ABA

Tritanopia (blue-blind)

#458993

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #657cbb;
/* rgb */ color: rgb(101, 124, 187);
/* oklch */ color: oklch(59.5% 0.100 268.0);

Tailwind

colors: {
  custom: {
    50: '#95a1cf',
    500: '#657cbb',
    950: '#000000',
  },
}

SCSS

$custom: #657cbb;
$custom-light: #95a1cf;
$custom-dark: #000000;

JSON

{
  "hex": "#657cbb",
  "rgb": {
    "r": 101,
    "g": 124,
    "b": 187
  },
  "hsl": {
    "h": 223.953,
    "s": 38.739,
    "l": 56.471
  },
  "oklch": {
    "l": 0.5952,
    "c": 0.10045,
    "h": 268
  },
  "luminance": 0.2077
}

Semantic roles & 50–950 ramp

primary

#657CBB

secondary

#D0C6AC

accent

#AF59CF

background

#F9F9FC

surface

#F2F2F9

border

#CCCCD2

text

#0E0F14

muted

#7E7E82

Preview Lab

Preview with #657CBB

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

Preview Lab → · Contrast checker → · Palette generator →