#657CB1#657CB1

#657CB1 is a mid, moderate blue. Relative luminance 0.204; OKLCH L 59.0% C 0.086 H 265.9°. Best body text is #000000 at 5.07:1 contrast (WCAG AA passes).

Color values

HEX#657CB1
RGBrgb(101, 124, 177)
HSLhsl(222, 33%, 55%)
HSVhsv(222, 43%, 69%)
CMYKcmyk(42.9%, 29.9%, 0%, 30.6%)
CIE-LABlab(52.24, 5.77, -30.70)
CIE-LCHlch(52.24, 31.24, 280.64°)
OKLaboklab(59.01% -0.0062 -0.0858)
OKLCHoklch(59.01% 0.086 265.9)
XYZxyz(20.5078, 20.3552, 44.4348)
Luminance0.2036 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#657CB1 #B19A65
analogous
#65A2B1 #657CB1 #7465B1
triadic
#657CB1 #B1657C #7CB165
tetradic
#657CB1 #B165A2 #B19A65 #65B174
square
#657CB1 #B165A2 #B19A65 #65B174
split-complementary
#657CB1 #B17465 #A2B165
monochromatic
#344467 #495E90 #657CB1 #8E9FC6 #B6C1DA

Accessibility & contrast

On white

4.14
#657CB1 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.07
#657CB1 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #657CB1
5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##657CB1#FFFFFF#000000##000000
##657CB11.004.145.075.07
#FFFFFF4.141.0021.0021.00
#0000005.0721.001.001.00
##0000005.0721.001.001.00

Color blindness preview

Protanopia (red-blind)
#6980B3
Deuteranopia (green-blind)
#6279B0
Tritanopia (blue-blind)
#4A878F
Achromatopsia (no color)
#7D7D7D

Design tokens & code

CSS
--color: #657cb1;
/* rgb */ color: rgb(101, 124, 177);
/* oklch */ color: oklch(59.0% 0.086 265.9);
Tailwind
colors: {
  custom: {
    50: '#94a1c8',
    500: '#657cb1',
    950: '#000000',
  },
}
SCSS
$custom: #657cb1;
$custom-light: #94a1c8;
$custom-dark: #000000;
JSON
{
  "hex": "#657cb1",
  "rgb": {
    "r": 101,
    "g": 124,
    "b": 177
  },
  "hsl": {
    "h": 221.842,
    "s": 32.759,
    "l": 54.51
  },
  "oklch": {
    "l": 0.59013,
    "c": 0.08604,
    "h": 265.9
  },
  "luminance": 0.20356
}

Semantic roles & 50–950 ramp

primary
#657CB1
secondary
#C9BFA9
accent
#A95FC9
background
#F9F9FC
surface
#F2F2F8
border
#CCCCD1
text
#0D0F13
muted
#7E7E82

Preview Lab

Preview with #657CB1

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

Preview Lab → · Contrast checker → · Palette generator →

#657CB1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva