#657CB7#657CB7

#657CB7 is a mid, moderate blue. Relative luminance 0.206; OKLCH L 59.3% C 0.095 H 267.3°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#657CB7
RGB	rgb(101, 124, 183)
HSL	hsl(223, 36%, 56%)
HSV	hsv(223, 45%, 72%)
CMYK	cmyk(44.8%, 32.2%, 0%, 28.2%)
CIE-LAB	lab(52.51, 7.55, -33.73)
CIE-LCH	lch(52.51, 34.56, 282.61°)
OKLab	oklab(59.31% -0.0045 -0.0946)
OKLCH	oklch(59.31% 0.095 267.3)
XYZ	xyz(21.1190, 20.5997, 47.6539)
Luminance	0.2060 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657CB7 #B7A065

analogous

#65A5B7 #657CB7 #7765B7

triadic

#657CB7 #B7657C #7CB765

tetradic

#657CB7 #B765A5 #B7A065 #65B777

square

#657CB7 #B765A5 #B7A065 #65B777

split-complementary

#657CB7 #B77765 #A5B765

monochromatic

#33446E #475E98 #657CB7 #8F9FCA #B8C3DE

Accessibility & contrast

On white

4.10

#657CB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.12

#657CB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657CB7

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657CB7	#FFFFFF	#000000	##000000
##657CB7	1.00	4.10	5.12	5.12
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.12	21.00	1.00	1.00
##000000	5.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6781B9

Deuteranopia (green-blind)

#5F7AB6

Tritanopia (blue-blind)

#478891

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #657cb7;
/* rgb */ color: rgb(101, 124, 183);
/* oklch */ color: oklch(59.3% 0.095 267.3);

Tailwind

colors: {
  custom: {
    50: '#95a1cd',
    500: '#657cb7',
    950: '#000000',
  },
}

SCSS

$custom: #657cb7;
$custom-light: #95a1cd;
$custom-dark: #000000;

JSON

{
  "hex": "#657cb7",
  "rgb": {
    "r": 101,
    "g": 124,
    "b": 183
  },
  "hsl": {
    "h": 223.171,
    "s": 36.283,
    "l": 55.686
  },
  "oklch": {
    "l": 0.59314,
    "c": 0.09469,
    "h": 267.3
  },
  "luminance": 0.20601
}

Semantic roles & 50–950 ramp

primary

#657CB7

secondary

#CDC3AB

accent

#AD5CCC

background

#F9F9FC

surface

#F2F2F9

border

#CCCCD2

text

#0D0F13

muted

#7E7E82

Preview Lab

Preview with #657CB7

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

Preview Lab → · Contrast checker → · Palette generator →