#657CB2#657CB2

#657CB2 is a mid, moderate blue. Relative luminance 0.204; OKLCH L 59.1% C 0.087 H 266.1°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#657CB2
RGB	rgb(101, 124, 178)
HSL	hsl(222, 33%, 55%)
HSV	hsv(222, 43%, 70%)
CMYK	cmyk(43.3%, 30.3%, 0%, 30.2%)
CIE-LAB	lab(52.28, 6.06, -31.21)
CIE-LCH	lch(52.28, 31.79, 280.99°)
OKLab	oklab(59.06% -0.0059 -0.0873)
OKLCH	oklch(59.06% 0.087 266.1)
XYZ	xyz(20.6078, 20.3952, 44.9616)
Luminance	0.2040 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657CB2 #B29B65

analogous

#65A2B2 #657CB2 #7565B2

triadic

#657CB2 #B2657C #7CB265

tetradic

#657CB2 #B265A2 #B29B65 #65B275

square

#657CB2 #B265A2 #B29B65 #65B275

split-complementary

#657CB2 #B27565 #A2B265

monochromatic

#344468 #495E91 #657CB2 #8E9FC6 #B7C1DB

Accessibility & contrast

On white

4.13

#657CB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.08

#657CB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657CB2

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657CB2	#FFFFFF	#000000	##000000
##657CB2	1.00	4.13	5.08	5.08
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.08	21.00	1.00	1.00
##000000	5.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6980B4

Deuteranopia (green-blind)

#617AB1

Tritanopia (blue-blind)

#4A878F

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #657cb2;
/* rgb */ color: rgb(101, 124, 178);
/* oklch */ color: oklch(59.1% 0.087 266.1);

Tailwind

colors: {
  custom: {
    50: '#94a1c9',
    500: '#657cb2',
    950: '#000000',
  },
}

SCSS

$custom: #657cb2;
$custom-light: #94a1c9;
$custom-dark: #000000;

JSON

{
  "hex": "#657cb2",
  "rgb": {
    "r": 101,
    "g": 124,
    "b": 178
  },
  "hsl": {
    "h": 222.078,
    "s": 33.333,
    "l": 54.706
  },
  "oklch": {
    "l": 0.59063,
    "c": 0.08749,
    "h": 266.1
  },
  "luminance": 0.20396
}

Semantic roles & 50–950 ramp

primary

#657CB2

secondary

#CAC0A9

accent

#A95EC9

background

#F9F9FC

surface

#F2F2F8

border

#CCCCD1

text

#0D0F13

muted

#7E7E82

Preview Lab

Preview with #657CB2

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

Preview Lab → · Contrast checker → · Palette generator →