#657FB5#657FB5

#657FB5 is a mid, moderate blue. Relative luminance 0.213; OKLCH L 59.9% C 0.088 H 264.2°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#657FB5
RGB	rgb(101, 127, 181)
HSL	hsl(221, 35%, 55%)
HSV	hsv(221, 44%, 71%)
CMYK	cmyk(44.2%, 29.8%, 0%, 29%)
CIE-LAB	lab(53.26, 5.16, -31.41)
CIE-LCH	lch(53.26, 31.84, 279.33°)
OKLab	oklab(59.87% -0.0089 -0.0879)
OKLCH	oklch(59.87% 0.088 264.2)
XYZ	xyz(21.2940, 21.2804, 46.6926)
Luminance	0.2128 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657FB5 #B59B65

analogous

#65A7B5 #657FB5 #7365B5

triadic

#657FB5 #B5657F #7FB565

tetradic

#657FB5 #B565A7 #B59B65 #65B573

square

#657FB5 #B565A7 #B59B65 #65B573

split-complementary

#657FB5 #B57365 #A7B565

monochromatic

#34466C #486195 #657FB5 #8EA1C9 #B8C4DD

Accessibility & contrast

On white

4.00

#657FB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.26

#657FB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657FB5

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657FB5	#FFFFFF	#000000	##000000
##657FB5	1.00	4.00	5.26	5.26
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.26	21.00	1.00	1.00
##000000	5.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C83B7

Deuteranopia (green-blind)

#637CB4

Tritanopia (blue-blind)

#488A92

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #657fb5;
/* rgb */ color: rgb(101, 127, 181);
/* oklch */ color: oklch(59.9% 0.088 264.2);

Tailwind

colors: {
  custom: {
    50: '#94a3cb',
    500: '#657fb5',
    950: '#000000',
  },
}

SCSS

$custom: #657fb5;
$custom-light: #94a3cb;
$custom-dark: #000000;

JSON

{
  "hex": "#657fb5",
  "rgb": {
    "r": 101,
    "g": 127,
    "b": 181
  },
  "hsl": {
    "h": 220.5,
    "s": 35.088,
    "l": 55.294
  },
  "oklch": {
    "l": 0.59865,
    "c": 0.08833,
    "h": 264.2
  },
  "luminance": 0.21282
}

Semantic roles & 50–950 ramp

primary

#657FB5

secondary

#CCC1AA

accent

#A75DCB

background

#F9FAFC

surface

#F2F3F8

border

#CCCDD1

text

#0D0F13

muted

#7E7F82

Preview Lab

Preview with #657FB5

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

Preview Lab → · Contrast checker → · Palette generator →