#657FB2#657FB2

#657FB2 is a mid, moderate blue. Relative luminance 0.212; OKLCH L 59.7% C 0.084 H 263.3°. Best body text is #000000 at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#657FB2
RGB	rgb(101, 127, 178)
HSL	hsl(220, 33%, 55%)
HSV	hsv(220, 43%, 70%)
CMYK	cmyk(43.3%, 28.7%, 0%, 30.2%)
CIE-LAB	lab(53.12, 4.28, -29.90)
CIE-LCH	lch(53.12, 30.20, 278.14°)
OKLab	oklab(59.72% -0.0098 -0.0835)
OKLCH	oklch(59.72% 0.084 263.3)
XYZ	xyz(20.9895, 21.1586, 45.0889)
Luminance	0.2116 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657FB2 #B29865

analogous

#65A6B2 #657FB2 #7265B2

triadic

#657FB2 #B2657F #7FB265

tetradic

#657FB2 #B265A6 #B29865 #65B272

square

#657FB2 #B265A6 #B29865 #65B272

split-complementary

#657FB2 #B27265 #A6B265

monochromatic

#344668 #496191 #657FB2 #8EA1C6 #B7C3DB

Accessibility & contrast

On white

4.01

#657FB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.23

#657FB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657FB2

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657FB2	#FFFFFF	#000000	##000000
##657FB2	1.00	4.01	5.23	5.23
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.23	21.00	1.00	1.00
##000000	5.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D83B4

Deuteranopia (green-blind)

#657CB1

Tritanopia (blue-blind)

#498A91

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #657fb2;
/* rgb */ color: rgb(101, 127, 178);
/* oklch */ color: oklch(59.7% 0.084 263.3);

Tailwind

colors: {
  custom: {
    50: '#94a3c9',
    500: '#657fb2',
    950: '#000000',
  },
}

SCSS

$custom: #657fb2;
$custom-light: #94a3c9;
$custom-dark: #000000;

JSON

{
  "hex": "#657fb2",
  "rgb": {
    "r": 101,
    "g": 127,
    "b": 178
  },
  "hsl": {
    "h": 219.74,
    "s": 33.333,
    "l": 54.706
  },
  "oklch": {
    "l": 0.59718,
    "c": 0.08408,
    "h": 263.3
  },
  "luminance": 0.2116
}

Semantic roles & 50–950 ramp

primary

#657FB2

secondary

#CABFA9

accent

#A55EC9

background

#F9FAFC

surface

#F2F3F8

border

#CCCDD1

text

#0D0F13

muted

#7E7F82

Preview Lab

Preview with #657FB2

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

Preview Lab → · Contrast checker → · Palette generator →