#657DBC#657DBC

#657DBC is a mid, moderate blue. Relative luminance 0.211; OKLCH L 59.8% C 0.101 H 267.5°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#657DBC
RGB	rgb(101, 125, 188)
HSL	hsl(223, 39%, 57%)
HSV	hsv(223, 46%, 74%)
CMYK	cmyk(46.3%, 33.5%, 0%, 26.3%)
CIE-LAB	lab(53.02, 8.45, -35.80)
CIE-LCH	lch(53.02, 36.78, 283.28°)
OKLab	oklab(59.79% -0.0045 -0.1006)
OKLCH	oklch(59.79% 0.101 267.5)
XYZ	xyz(21.7746, 21.0635, 50.4855)
Luminance	0.2107 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657DBC #BCA465

analogous

#65A9BC #657DBC #7965BC

triadic

#657DBC #BC657D #7DBC65

tetradic

#657DBC #BC65A9 #BCA465 #65BC79

square

#657DBC #BC65A9 #BCA465 #65BC79

split-complementary

#657DBC #BC7965 #A9BC65

monochromatic

#334574 #455E9F #657DBC #90A1CF #BAC5E1

Accessibility & contrast

On white

4.03

#657DBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#657DBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657DBC

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657DBC	#FFFFFF	#000000	##000000
##657DBC	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6683BF

Deuteranopia (green-blind)

#5D7BBB

Tritanopia (blue-blind)

#448A94

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #657dbc;
/* rgb */ color: rgb(101, 125, 188);
/* oklch */ color: oklch(59.8% 0.101 267.5);

Tailwind

colors: {
  custom: {
    50: '#95a2d0',
    500: '#657dbc',
    950: '#000000',
  },
}

SCSS

$custom: #657dbc;
$custom-light: #95a2d0;
$custom-dark: #000000;

JSON

{
  "hex": "#657dbc",
  "rgb": {
    "r": 101,
    "g": 125,
    "b": 188
  },
  "hsl": {
    "h": 223.448,
    "s": 39.367,
    "l": 56.667
  },
  "oklch": {
    "l": 0.59787,
    "c": 0.10067,
    "h": 267.5
  },
  "luminance": 0.21065
}

Semantic roles & 50–950 ramp

primary

#657DBC

secondary

#D0C6AD

accent

#AF59CF

background

#F9F9FC

surface

#F2F2F9

border

#CCCCD2

text

#0E0F14

muted

#7E7E82

Preview Lab

Preview with #657DBC

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

Preview Lab → · Contrast checker → · Palette generator →