#657EB4#657EB4

#657EB4 is a mid, moderate blue. Relative luminance 0.210; OKLCH L 59.6% C 0.088 H 264.8°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#657EB4
RGB	rgb(101, 126, 180)
HSL	hsl(221, 34%, 55%)
HSV	hsv(221, 44%, 71%)
CMYK	cmyk(43.9%, 30%, 0%, 29.4%)
CIE-LAB	lab(52.93, 5.46, -31.35)
CIE-LCH	lch(52.93, 31.82, 279.88°)
OKLab	oklab(59.6% -0.0079 -0.0877)
OKLCH	oklch(59.6% 0.088 264.8)
XYZ	xyz(21.0633, 20.9825, 46.1113)
Luminance	0.2098 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657EB4 #B49B65

analogous

#65A5B4 #657EB4 #7465B4

triadic

#657EB4 #B4657E #7EB465

tetradic

#657EB4 #B465A5 #B49B65 #65B474

square

#657EB4 #B465A5 #B49B65 #65B474

split-complementary

#657EB4 #B47465 #A5B465

monochromatic

#34456B #486094 #657EB4 #8EA0C8 #B7C3DC

Accessibility & contrast

On white

4.04

#657EB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#657EB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657EB4

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657EB4	#FFFFFF	#000000	##000000
##657EB4	1.00	4.04	5.20	5.20
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.20	21.00	1.00	1.00
##000000	5.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B82B6

Deuteranopia (green-blind)

#627BB3

Tritanopia (blue-blind)

#498991

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #657eb4;
/* rgb */ color: rgb(101, 126, 180);
/* oklch */ color: oklch(59.6% 0.088 264.8);

Tailwind

colors: {
  custom: {
    50: '#94a3ca',
    500: '#657eb4',
    950: '#000000',
  },
}

SCSS

$custom: #657eb4;
$custom-light: #94a3ca;
$custom-dark: #000000;

JSON

{
  "hex": "#657eb4",
  "rgb": {
    "r": 101,
    "g": 126,
    "b": 180
  },
  "hsl": {
    "h": 221.013,
    "s": 34.498,
    "l": 55.098
  },
  "oklch": {
    "l": 0.59597,
    "c": 0.08804,
    "h": 264.8
  },
  "luminance": 0.20984
}

Semantic roles & 50–950 ramp

primary

#657EB4

secondary

#CBC0AA

accent

#A85DCB

background

#F9FAFC

surface

#F2F3F8

border

#CCCDD1

text

#0D0F13

muted

#7E7F82

Preview Lab

Preview with #657EB4

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

Preview Lab → · Contrast checker → · Palette generator →