#3A66CA#3A66CA

#3A66CA is a mid, vivid blue. Relative luminance 0.147; OKLCH L 53.4% C 0.163 H 263.9°. Best body text is #FFFFFF at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#3A66CA
RGB	rgb(58, 102, 202)
HSL	hsl(222, 58%, 51%)
HSV	hsv(222, 71%, 79%)
CMYK	cmyk(71.3%, 49.5%, 0%, 20.8%)
CIE-LAB	lab(45.17, 18.89, -56.46)
CIE-LCH	lch(45.17, 59.54, 288.49°)
OKLab	oklab(53.39% -0.0174 -0.1621)
OKLCH	oklch(53.39% 0.163 263.9)
XYZ	xyz(17.1532, 14.6647, 57.7922)
Luminance	0.1467 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A66CA #CA9E3A

analogous

#3AAECA #3A66CA #563ACA

triadic

#3A66CA #CA3A66 #66CA3A

tetradic

#3A66CA #CA3AAE #CA9E3A #3ACA56

square

#3A66CA #CA3AAE #CA9E3A #3ACA56

split-complementary

#3A66CA #CA563A #AECA3A

monochromatic

#1D356C #2A4D9D #3A66CA #6A8BD7 #9AB1E4

Accessibility & contrast

On white

5.34

#3A66CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.93

#3A66CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A66CA

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A66CA	#FFFFFF	#000000	##FFFFFF
##3A66CA	1.00	5.34	3.93	5.34
#FFFFFF	5.34	1.00	21.00	1.00
#000000	3.93	21.00	1.00	21.00
##FFFFFF	5.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C72CE

Deuteranopia (green-blind)

#0065C8

Tritanopia (blue-blind)

#007E8E

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3a66ca;
/* rgb */ color: rgb(58, 102, 202);
/* oklch */ color: oklch(53.4% 0.163 263.9);

Tailwind

colors: {
  custom: {
    50: '#8291db',
    500: '#3a66ca',
    950: '#000000',
  },
}

SCSS

$custom: #3a66ca;
$custom-light: #8291db;
$custom-dark: #000000;

JSON

{
  "hex": "#3a66ca",
  "rgb": {
    "r": 58,
    "g": 102,
    "b": 202
  },
  "hsl": {
    "h": 221.667,
    "s": 57.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.53388,
    "c": 0.16307,
    "h": 263.9
  },
  "luminance": 0.14667
}

Semantic roles & 50–950 ramp

primary

#3A66CA

secondary

#D0BC90

accent

#B247E1

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3A66CA

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

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