#657FB4#657FB4

#657FB4 is a mid, moderate blue. Relative luminance 0.212; OKLCH L 59.8% C 0.087 H 263.9°. Best body text is #000000 at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#657FB4
RGB	rgb(101, 127, 180)
HSL	hsl(220, 34%, 55%)
HSV	hsv(220, 44%, 71%)
CMYK	cmyk(43.9%, 29.4%, 0%, 29.4%)
CIE-LAB	lab(53.21, 4.87, -30.91)
CIE-LCH	lch(53.21, 31.29, 278.95°)
OKLab	oklab(59.82% -0.0092 -0.0864)
OKLCH	oklch(59.82% 0.087 263.9)
XYZ	xyz(21.1918, 21.2395, 46.1542)
Luminance	0.2124 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657FB4 #B49A65

analogous

#65A7B4 #657FB4 #7265B4

triadic

#657FB4 #B4657F #7FB465

tetradic

#657FB4 #B465A7 #B49A65 #65B472

square

#657FB4 #B465A7 #B49A65 #65B472

split-complementary

#657FB4 #B47265 #A7B465

monochromatic

#34466B #486194 #657FB4 #8EA1C8 #B7C3DC

Accessibility & contrast

On white

4.00

#657FB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.25

#657FB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657FB4

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657FB4	#FFFFFF	#000000	##000000
##657FB4	1.00	4.00	5.25	5.25
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.25	21.00	1.00	1.00
##000000	5.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C83B6

Deuteranopia (green-blind)

#647CB3

Tritanopia (blue-blind)

#488A92

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #657fb4;
/* rgb */ color: rgb(101, 127, 180);
/* oklch */ color: oklch(59.8% 0.087 263.9);

Tailwind

colors: {
  custom: {
    50: '#94a3ca',
    500: '#657fb4',
    950: '#000000',
  },
}

SCSS

$custom: #657fb4;
$custom-light: #94a3ca;
$custom-dark: #000000;

JSON

{
  "hex": "#657fb4",
  "rgb": {
    "r": 101,
    "g": 127,
    "b": 180
  },
  "hsl": {
    "h": 220.253,
    "s": 34.498,
    "l": 55.098
  },
  "oklch": {
    "l": 0.59816,
    "c": 0.08691,
    "h": 263.9
  },
  "luminance": 0.21241
}

Semantic roles & 50–950 ramp

primary

#657FB4

secondary

#CBC0AA

accent

#A75DCB

background

#F9FAFC

surface

#F2F3F8

border

#CCCDD1

text

#0D0F13

muted

#7E7F82

Preview Lab

Preview with #657FB4

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

Preview Lab → · Contrast checker → · Palette generator →