#657FB3#657FB3

#657FB3 is a mid, moderate blue. Relative luminance 0.212; OKLCH L 59.8% C 0.085 H 263.6°. Best body text is #000000 at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#657FB3
RGB	rgb(101, 127, 179)
HSL	hsl(220, 34%, 55%)
HSV	hsv(220, 44%, 70%)
CMYK	cmyk(43.6%, 29.1%, 0%, 29.8%)
CIE-LAB	lab(53.17, 4.57, -30.40)
CIE-LCH	lch(53.17, 30.75, 278.55°)
OKLab	oklab(59.77% -0.0095 -0.085)
OKLCH	oklch(59.77% 0.085 263.6)
XYZ	xyz(21.0903, 21.1989, 45.6196)
Luminance	0.2120 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657FB3 #B39965

analogous

#65A6B3 #657FB3 #7265B3

triadic

#657FB3 #B3657F #7FB365

tetradic

#657FB3 #B365A6 #B39965 #65B372

square

#657FB3 #B365A6 #B39965 #65B372

split-complementary

#657FB3 #B37265 #A6B365

monochromatic

#34466A #486193 #657FB3 #8EA1C7 #B7C3DB

Accessibility & contrast

On white

4.01

#657FB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.24

#657FB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657FB3

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657FB3	#FFFFFF	#000000	##000000
##657FB3	1.00	4.01	5.24	5.24
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.24	21.00	1.00	1.00
##000000	5.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C83B5

Deuteranopia (green-blind)

#647CB2

Tritanopia (blue-blind)

#498A91

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #657fb3;
/* rgb */ color: rgb(101, 127, 179);
/* oklch */ color: oklch(59.8% 0.085 263.6);

Tailwind

colors: {
  custom: {
    50: '#94a3ca',
    500: '#657fb3',
    950: '#000000',
  },
}

SCSS

$custom: #657fb3;
$custom-light: #94a3ca;
$custom-dark: #000000;

JSON

{
  "hex": "#657fb3",
  "rgb": {
    "r": 101,
    "g": 127,
    "b": 179
  },
  "hsl": {
    "h": 220,
    "s": 33.913,
    "l": 54.902
  },
  "oklch": {
    "l": 0.59767,
    "c": 0.08549,
    "h": 263.6
  },
  "luminance": 0.212
}

Semantic roles & 50–950 ramp

primary

#657FB3

secondary

#CABFA9

accent

#A65ECA

background

#F9FAFC

surface

#F2F3F8

border

#CCCDD1

text

#0D0F13

muted

#7E7F82

Preview Lab

Preview with #657FB3

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

Preview Lab → · Contrast checker → · Palette generator →