#3B63AA#3B63AA

#3B63AA is a mid, vivid blue. Relative luminance 0.128; OKLCH L 50.6% C 0.122 H 261.0°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#3B63AA
RGB	rgb(59, 99, 170)
HSL	hsl(218, 48%, 45%)
HSV	hsv(218, 65%, 67%)
CMYK	cmyk(65.3%, 41.8%, 0%, 33.3%)
CIE-LAB	lab(42.39, 9.31, -42.29)
CIE-LCH	lch(42.39, 43.31, 282.42°)
OKLab	oklab(50.63% -0.0191 -0.1205)
OKLCH	oklch(50.63% 0.122 261)
XYZ	xyz(13.5186, 12.7545, 39.7719)
Luminance	0.1276 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B63AA #AA823B

analogous

#3B9BAA #3B63AA #4A3BAA

triadic

#3B63AA #AA3B63 #63AA3B

tetradic

#3B63AA #AA3B9B #AA823B #3BAA4A

square

#3B63AA #AA3B9B #AA823B #3BAA4A

split-complementary

#3B63AA #AA4A3B #9BAA3B

monochromatic

#1B2E4F #2B497D #3B63AA #5C82C6 #89A5D6

Accessibility & contrast

On white

5.91

#3B63AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#3B63AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B63AA

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B63AA	#FFFFFF	#000000	##FFFFFF
##3B63AA	1.00	5.91	3.55	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#436AAD

Deuteranopia (green-blind)

#325FA9

Tritanopia (blue-blind)

#00737E

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3b63aa;
/* rgb */ color: rgb(59, 99, 170);
/* oklch */ color: oklch(50.6% 0.122 261.0);

Tailwind

colors: {
  custom: {
    50: '#7c8fc4',
    500: '#3b63aa',
    950: '#000000',
  },
}

SCSS

$custom: #3b63aa;
$custom-light: #7c8fc4;
$custom-dark: #000000;

JSON

{
  "hex": "#3b63aa",
  "rgb": {
    "r": 59,
    "g": 99,
    "b": 170
  },
  "hsl": {
    "h": 218.378,
    "s": 48.472,
    "l": 44.902
  },
  "oklch": {
    "l": 0.50627,
    "c": 0.12201,
    "h": 261
  },
  "luminance": 0.12756
}

Semantic roles & 50–950 ramp

primary

#3B63AA

secondary

#C0A980

accent

#A750D8

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #3B63AA

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

Preview Lab → · Contrast checker → · Palette generator →