#668DC5#668DC5

#668DC5 is a light, moderate blue. Relative luminance 0.259; OKLCH L 63.8% C 0.095 H 257.4°. Best body text is #000000 at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#668DC5
RGB	rgb(102, 141, 197)
HSL	hsl(215, 45%, 59%)
HSV	hsv(215, 48%, 77%)
CMYK	cmyk(48.2%, 28.4%, 0%, 22.7%)
CIE-LAB	lab(57.95, 1.96, -33.21)
CIE-LCH	lch(57.95, 33.27, 273.38°)
OKLab	oklab(63.77% -0.0208 -0.093)
OKLCH	oklch(63.77% 0.095 257.4)
XYZ	xyz(25.0790, 25.9041, 56.4909)
Luminance	0.2591 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#668DC5 #C59E66

analogous

#66BDC5 #668DC5 #6E66C5

triadic

#668DC5 #C5668D #8DC566

tetradic

#668DC5 #C566BD #C59E66 #66C56E

square

#668DC5 #C566BD #C59E66 #66C56E

split-complementary

#668DC5 #C56E66 #BDC566

monochromatic

#315180 #416DAC #668DC5 #92AED6 #BFCFE7

Accessibility & contrast

On white

3.40

#668DC5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.18

#668DC5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #668DC5

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##668DC5	#FFFFFF	#000000	##000000
##668DC5	1.00	3.40	6.18	6.18
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.18	21.00	1.00	1.00
##000000	6.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7890C7

Deuteranopia (green-blind)

#6C87C4

Tritanopia (blue-blind)

#3D99A1

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #668dc5;
/* rgb */ color: rgb(102, 141, 197);
/* oklch */ color: oklch(63.8% 0.095 257.4);

Tailwind

colors: {
  custom: {
    50: '#96aed6',
    500: '#668dc5',
    950: '#000000',
  },
}

SCSS

$custom: #668dc5;
$custom-light: #96aed6;
$custom-dark: #000000;

JSON

{
  "hex": "#668dc5",
  "rgb": {
    "r": 102,
    "g": 141,
    "b": 197
  },
  "hsl": {
    "h": 215.368,
    "s": 45.024,
    "l": 58.627
  },
  "oklch": {
    "l": 0.63774,
    "c": 0.09531,
    "h": 257.4
  },
  "luminance": 0.25906
}

Semantic roles & 50–950 ramp

primary

#668DC5

secondary

#D6C7B1

accent

#9F53D5

background

#F9FAFD

surface

#F2F4FA

border

#CCCED3

text

#0E1014

muted

#7E7F83

Preview Lab

Preview with #668DC5

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

Preview Lab → · Contrast checker → · Palette generator →