#657CB4#657CB4

#657CB4 is a mid, moderate blue. Relative luminance 0.205; OKLCH L 59.2% C 0.090 H 266.6°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#657CB4
RGB	rgb(101, 124, 180)
HSL	hsl(223, 34%, 55%)
HSV	hsv(223, 44%, 71%)
CMYK	cmyk(43.9%, 31.1%, 0%, 29.4%)
CIE-LAB	lab(52.37, 6.65, -32.22)
CIE-LCH	lch(52.37, 32.90, 281.67°)
OKLab	oklab(59.16% -0.0054 -0.0902)
OKLCH	oklch(59.16% 0.09 266.6)
XYZ	xyz(20.8101, 20.4761, 46.0269)
Luminance	0.2048 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#657CB4 #B49D65

analogous

#65A3B4 #657CB4 #7665B4

triadic

#657CB4 #B4657C #7CB465

tetradic

#657CB4 #B465A3 #B49D65 #65B476

square

#657CB4 #B465A3 #B49D65 #65B476

split-complementary

#657CB4 #B47665 #A3B465

monochromatic

#34446B #485E94 #657CB4 #8E9FC8 #B7C2DC

Accessibility & contrast

On white

4.12

#657CB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#657CB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657CB4

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##657CB4	#FFFFFF	#000000	##000000
##657CB4	1.00	4.12	5.10	5.10
#FFFFFF	4.12	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)

#6881B6

Deuteranopia (green-blind)

#607AB3

Tritanopia (blue-blind)

#498890

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #657cb4;
/* rgb */ color: rgb(101, 124, 180);
/* oklch */ color: oklch(59.2% 0.090 266.6);

Tailwind

colors: {
  custom: {
    50: '#94a1ca',
    500: '#657cb4',
    950: '#000000',
  },
}

SCSS

$custom: #657cb4;
$custom-light: #94a1ca;
$custom-dark: #000000;

JSON

{
  "hex": "#657cb4",
  "rgb": {
    "r": 101,
    "g": 124,
    "b": 180
  },
  "hsl": {
    "h": 222.532,
    "s": 34.498,
    "l": 55.098
  },
  "oklch": {
    "l": 0.59162,
    "c": 0.09037,
    "h": 266.6
  },
  "luminance": 0.20477
}

Semantic roles & 50–950 ramp

primary

#657CB4

secondary

#CBC1AA

accent

#AB5DCB

background

#F9F9FC

surface

#F2F2F8

border

#CCCCD1

text

#0D0F13

muted

#7E7E82

Preview Lab

Preview with #657CB4

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

Preview Lab → · Contrast checker → · Palette generator →