#657BB3#657BB3

#657BB3 is a mid, moderate blue. Relative luminance 0.202; OKLCH L 58.9% C 0.090 H 267.2°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#657BB3
RGB	rgb(101, 123, 179)
HSL	hsl(223, 34%, 55%)
HSV	hsv(223, 44%, 70%)
CMYK	cmyk(43.6%, 31.3%, 0%, 29.8%)
CIE-LAB	lab(52.05, 6.96, -32.15)
CIE-LCH	lch(52.05, 32.89, 282.21°)
OKLab	oklab(58.9% -0.0043 -0.09)
OKLCH	oklch(58.9% 0.09 267.2)
XYZ	xyz(20.5839, 20.1862, 45.4508)
Luminance	0.2019 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657BB3 #B39D65

analogous

#65A2B3 #657BB3 #7665B3

triadic

#657BB3 #B3657B #7BB365

tetradic

#657BB3 #B365A2 #B39D65 #65B376

square

#657BB3 #B365A2 #B39D65 #65B376

split-complementary

#657BB3 #B37665 #A2B365

monochromatic

#34436A #485D93 #657BB3 #8E9EC7 #B7C1DB

Accessibility & contrast

On white

4.17

#657BB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#657BB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657BB3

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657BB3	#FFFFFF	#000000	##000000
##657BB3	1.00	4.17	5.04	5.04
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.04	21.00	1.00	1.00
##000000	5.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6780B5

Deuteranopia (green-blind)

#5F79B2

Tritanopia (blue-blind)

#4A878F

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #657bb3;
/* rgb */ color: rgb(101, 123, 179);
/* oklch */ color: oklch(58.9% 0.090 267.2);

Tailwind

colors: {
  custom: {
    50: '#94a1ca',
    500: '#657bb3',
    950: '#000000',
  },
}

SCSS

$custom: #657bb3;
$custom-light: #94a1ca;
$custom-dark: #000000;

JSON

{
  "hex": "#657bb3",
  "rgb": {
    "r": 101,
    "g": 123,
    "b": 179
  },
  "hsl": {
    "h": 223.077,
    "s": 33.913,
    "l": 54.902
  },
  "oklch": {
    "l": 0.58895,
    "c": 0.09011,
    "h": 267.2
  },
  "luminance": 0.20187
}

Semantic roles & 50–950 ramp

primary

#657BB3

secondary

#CAC1A9

accent

#AB5ECA

background

#F9F9FC

surface

#F2F2F8

border

#CCCCD1

text

#0D0E13

muted

#7E7E82

Preview Lab

Preview with #657BB3

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

Preview Lab → · Contrast checker → · Palette generator →