#657EBB#657EBB

#657EBB is a mid, moderate blue. Relative luminance 0.213; OKLCH L 60.0% C 0.098 H 266.5°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#657EBB
RGB	rgb(101, 126, 187)
HSL	hsl(223, 39%, 56%)
HSV	hsv(223, 46%, 73%)
CMYK	cmyk(46%, 32.6%, 0%, 26.7%)
CIE-LAB	lab(53.25, 7.55, -34.87)
CIE-LCH	lch(53.25, 35.67, 282.22°)
OKLab	oklab(59.95% -0.006 -0.0979)
OKLCH	oklch(59.95% 0.098 266.5)
XYZ	xyz(21.7945, 21.2750, 49.9621)
Luminance	0.2128 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657EBB #BBA265

analogous

#65A9BB #657EBB #7765BB

triadic

#657EBB #BB657E #7EBB65

tetradic

#657EBB #BB65A9 #BBA265 #65BB77

square

#657EBB #BB65A9 #BBA265 #65BB77

split-complementary

#657EBB #BB7765 #A9BB65

monochromatic

#334573 #455F9D #657EBB #8FA2CE #BAC5E0

Accessibility & contrast

On white

4.00

#657EBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.26

#657EBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657EBB

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657EBB	#FFFFFF	#000000	##000000
##657EBB	1.00	4.00	5.26	5.26
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.26	21.00	1.00	1.00
##000000	5.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6883BE

Deuteranopia (green-blind)

#5F7CBA

Tritanopia (blue-blind)

#448B94

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #657ebb;
/* rgb */ color: rgb(101, 126, 187);
/* oklch */ color: oklch(60.0% 0.098 266.5);

Tailwind

colors: {
  custom: {
    50: '#95a3cf',
    500: '#657ebb',
    950: '#000000',
  },
}

SCSS

$custom: #657ebb;
$custom-light: #95a3cf;
$custom-dark: #000000;

JSON

{
  "hex": "#657ebb",
  "rgb": {
    "r": 101,
    "g": 126,
    "b": 187
  },
  "hsl": {
    "h": 222.558,
    "s": 38.739,
    "l": 56.471
  },
  "oklch": {
    "l": 0.5995,
    "c": 0.09804,
    "h": 266.5
  },
  "luminance": 0.21276
}

Semantic roles & 50–950 ramp

primary

#657EBB

secondary

#D0C5AC

accent

#AC59CF

background

#F9FAFC

surface

#F2F3F9

border

#CCCDD2

text

#0E0F14

muted

#7E7F82

Preview Lab

Preview with #657EBB

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

Preview Lab → · Contrast checker → · Palette generator →