#3A66CE#3A66CE

#3A66CE is a mid, vivid blue. Relative luminance 0.149; OKLCH L 53.7% C 0.168 H 264.2°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#3A66CE
RGB	rgb(58, 102, 206)
HSL	hsl(222, 60%, 52%)
HSV	hsv(222, 72%, 81%)
CMYK	cmyk(71.8%, 50.5%, 0%, 19.2%)
CIE-LAB	lab(45.44, 20.35, -58.33)
CIE-LCH	lch(45.44, 61.78, 289.23°)
OKLab	oklab(53.68% -0.0169 -0.1676)
OKLCH	oklch(53.68% 0.168 264.2)
XYZ	xyz(17.6329, 14.8566, 60.3189)
Luminance	0.1486 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A66CE #CEA23A

analogous

#3AB0CE #3A66CE #583ACE

triadic

#3A66CE #CE3A66 #66CE3A

tetradic

#3A66CE #CE3AB0 #CEA23A #3ACE58

square

#3A66CE #CE3AB0 #CEA23A #3ACE58

split-complementary

#3A66CE #CE583A #B0CE3A

monochromatic

#1C3671 #284DA2 #3A66CE #6B8CDA #9CB2E6

Accessibility & contrast

On white

5.29

#3A66CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#3A66CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A66CE

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A66CE	#FFFFFF	#000000	##FFFFFF
##3A66CE	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)

#2773D2

Deuteranopia (green-blind)

#0065CC

Tritanopia (blue-blind)

#007F90

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #3a66ce;
/* rgb */ color: rgb(58, 102, 206);
/* oklch */ color: oklch(53.7% 0.168 264.2);

Tailwind

colors: {
  custom: {
    50: '#8391de',
    500: '#3a66ce',
    950: '#000000',
  },
}

SCSS

$custom: #3a66ce;
$custom-light: #8391de;
$custom-dark: #000000;

JSON

{
  "hex": "#3a66ce",
  "rgb": {
    "r": 58,
    "g": 102,
    "b": 206
  },
  "hsl": {
    "h": 222.162,
    "s": 60.163,
    "l": 51.765
  },
  "oklch": {
    "l": 0.53676,
    "c": 0.16849,
    "h": 264.2
  },
  "luminance": 0.14859
}

Semantic roles & 50–950 ramp

primary

#3A66CE

secondary

#D2BF91

accent

#B444E3

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3A66CE

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

Preview Lab → · Contrast checker → · Palette generator →