#657CB5#657CB5

#657CB5 is a mid, moderate blue. Relative luminance 0.205; OKLCH L 59.2% C 0.092 H 266.8°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#657CB5
RGB	rgb(101, 124, 181)
HSL	hsl(223, 35%, 55%)
HSV	hsv(223, 44%, 71%)
CMYK	cmyk(44.2%, 31.5%, 0%, 29%)
CIE-LAB	lab(52.42, 6.95, -32.72)
CIE-LCH	lch(52.42, 33.45, 281.99°)
OKLab	oklab(59.21% -0.0051 -0.0917)
OKLCH	oklch(59.21% 0.092 266.8)
XYZ	xyz(20.9123, 20.5170, 46.5654)
Luminance	0.2052 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657CB5 #B59E65

analogous

#65A4B5 #657CB5 #7665B5

triadic

#657CB5 #B5657C #7CB565

tetradic

#657CB5 #B565A4 #B59E65 #65B576

square

#657CB5 #B565A4 #B59E65 #65B576

split-complementary

#657CB5 #B57665 #A4B565

monochromatic

#34446C #485E95 #657CB5 #8E9FC9 #B8C2DD

Accessibility & contrast

On white

4.11

#657CB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#657CB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657CB5

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657CB5	#FFFFFF	#000000	##000000
##657CB5	1.00	4.11	5.10	5.10
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6881B7

Deuteranopia (green-blind)

#607AB4

Tritanopia (blue-blind)

#488890

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #657cb5;
/* rgb */ color: rgb(101, 124, 181);
/* oklch */ color: oklch(59.2% 0.092 266.8);

Tailwind

colors: {
  custom: {
    50: '#94a1cb',
    500: '#657cb5',
    950: '#000000',
  },
}

SCSS

$custom: #657cb5;
$custom-light: #94a1cb;
$custom-dark: #000000;

JSON

{
  "hex": "#657cb5",
  "rgb": {
    "r": 101,
    "g": 124,
    "b": 181
  },
  "hsl": {
    "h": 222.75,
    "s": 35.088,
    "l": 55.294
  },
  "oklch": {
    "l": 0.59213,
    "c": 0.0918,
    "h": 266.8
  },
  "luminance": 0.20518
}

Semantic roles & 50–950 ramp

primary

#657CB5

secondary

#CCC2AA

accent

#AB5DCB

background

#F9F9FC

surface

#F2F2F8

border

#CCCCD1

text

#0D0F13

muted

#7E7E82

Preview Lab

Preview with #657CB5

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

Preview Lab → · Contrast checker → · Palette generator →