#665EC5#665EC5

#665EC5 is a mid, vivid blue. Relative luminance 0.149; OKLCH L 54.2% C 0.155 H 283.4°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#665EC5
RGB	rgb(102, 94, 197)
HSL	hsl(245, 47%, 57%)
HSV	hsv(245, 52%, 77%)
CMYK	cmyk(48.2%, 52.3%, 0%, 22.7%)
CIE-LAB	lab(45.44, 30.35, -53.01)
CIE-LCH	lch(45.44, 61.08, 299.79°)
OKLab	oklab(54.19% 0.0361 -0.151)
OKLCH	oklch(54.19% 0.155 283.4)
XYZ	xyz(19.5572, 14.8604, 54.6503)
Luminance	0.1486 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665EC5 #BDC55E

analogous

#5E8AC5 #665EC5 #9A5EC5

triadic

#665EC5 #C5665E #5EC566

tetradic

#665EC5 #C55E8A #BDC55E #5EC59A

square

#665EC5 #C55E8A #BDC55E #5EC59A

split-complementary

#665EC5 #C59A5E #8AC55E

monochromatic

#332D7C #453DA9 #665EC5 #918BD5 #BCB8E5

Accessibility & contrast

On white

5.29

#665EC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#665EC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665EC5

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665EC5	#FFFFFF	#000000	##FFFFFF
##665EC5	1.00	5.29	3.97	5.29
#FFFFFF	5.29	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B6FC9

Deuteranopia (green-blind)

#2468C3

Tritanopia (blue-blind)

#447488

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #665ec5;
/* rgb */ color: rgb(102, 94, 197);
/* oklch */ color: oklch(54.2% 0.155 283.4);

Tailwind

colors: {
  custom: {
    50: '#988cd7',
    500: '#665ec5',
    950: '#000000',
  },
}

SCSS

$custom: #665ec5;
$custom-light: #988cd7;
$custom-dark: #000000;

JSON

{
  "hex": "#665ec5",
  "rgb": {
    "r": 102,
    "g": 94,
    "b": 197
  },
  "hsl": {
    "h": 244.66,
    "s": 47.032,
    "l": 57.059
  },
  "oklch": {
    "l": 0.54188,
    "c": 0.15529,
    "h": 283.4
  },
  "luminance": 0.14861
}

Semantic roles & 50–950 ramp

primary

#665EC5

secondary

#D1D4AA

accent

#D751CC

background

#F9F8FD

surface

#F2F0FA

border

#CCCBD3

text

#0E0C14

muted

#7E7D83

Preview Lab

Preview with #665EC5

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

Preview Lab → · Contrast checker → · Palette generator →