#3A63BB#3A63BB

#3A63BB is a mid, vivid blue. Relative luminance 0.134; OKLCH L 51.7% C 0.146 H 263.4°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#3A63BB
RGB	rgb(58, 99, 187)
HSL	hsl(221, 53%, 48%)
HSV	hsv(221, 69%, 73%)
CMYK	cmyk(69%, 47.1%, 0%, 26.7%)
CIE-LAB	lab(43.37, 15.32, -50.68)
CIE-LCH	lch(43.37, 52.94, 286.81°)
OKLab	oklab(51.7% -0.0168 -0.1452)
OKLCH	oklch(51.7% 0.146 263.4)
XYZ	xyz(15.1732, 13.4095, 48.7927)
Luminance	0.1341 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A63BB #BB923A

analogous

#3AA3BB #3A63BB #513ABB

triadic

#3A63BB #BB3A63 #63BB3A

tetradic

#3A63BB #BB3AA3 #BB923A #3ABB51

square

#3A63BB #BB3AA3 #BB923A #3ABB51

split-complementary

#3A63BB #BB513A #A3BB3A

monochromatic

#1D325E #2C4A8C #3A63BB #6386CF #92AADD

Accessibility & contrast

On white

5.70

#3A63BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#3A63BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A63BB

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A63BB	#FFFFFF	#000000	##FFFFFF
##3A63BB	1.00	5.70	3.68	5.70
#FFFFFF	5.70	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#356DBE

Deuteranopia (green-blind)

#1961B9

Tritanopia (blue-blind)

#007886

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3a63bb;
/* rgb */ color: rgb(58, 99, 187);
/* oklch */ color: oklch(51.7% 0.146 263.4);

Tailwind

colors: {
  custom: {
    50: '#7f8ed0',
    500: '#3a63bb',
    950: '#000000',
  },
}

SCSS

$custom: #3a63bb;
$custom-light: #7f8ed0;
$custom-dark: #000000;

JSON

{
  "hex": "#3a63bb",
  "rgb": {
    "r": 58,
    "g": 99,
    "b": 187
  },
  "hsl": {
    "h": 220.93,
    "s": 52.653,
    "l": 48.039
  },
  "oklch": {
    "l": 0.51704,
    "c": 0.14614,
    "h": 263.4
  },
  "luminance": 0.13411
}

Semantic roles & 50–950 ramp

primary

#3A63BB

secondary

#C8B488

accent

#AE4CDC

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3A63BB

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

Preview Lab → · Contrast checker → · Palette generator →