#3A63AB#3A63AB

#3A63AB is a mid, vivid blue. Relative luminance 0.128; OKLCH L 50.6% C 0.124 H 260.8°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#3A63AB
RGB	rgb(58, 99, 171)
HSL	hsl(218, 49%, 45%)
HSV	hsv(218, 66%, 67%)
CMYK	cmyk(66.1%, 42.1%, 0%, 32.9%)
CIE-LAB	lab(42.40, 9.49, -42.87)
CIE-LCH	lch(42.40, 43.90, 282.49°)
OKLab	oklab(50.64% -0.0197 -0.1222)
OKLCH	oklch(50.64% 0.124 260.8)
XYZ	xyz(13.5548, 12.7622, 40.2692)
Luminance	0.1276 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A63AB #AB823A

analogous

#3A9CAB #3A63AB #493AAB

triadic

#3A63AB #AB3A63 #63AB3A

tetradic

#3A63AB #AB3A9C #AB823A #3AAB49

square

#3A63AB #AB3A9C #AB823A #3AAB49

split-complementary

#3A63AB #AB493A #9CAB3A

monochromatic

#1B2E50 #2A497D #3A63AB #5B82C7 #89A5D7

Accessibility & contrast

On white

5.91

#3A63AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#3A63AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A63AB

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A63AB	#FFFFFF	#000000	##FFFFFF
##3A63AB	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)

#426AAE

Deuteranopia (green-blind)

#305FAA

Tritanopia (blue-blind)

#00737E

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3a63ab;
/* rgb */ color: rgb(58, 99, 171);
/* oklch */ color: oklch(50.6% 0.124 260.8);

Tailwind

colors: {
  custom: {
    50: '#7c8ec4',
    500: '#3a63ab',
    950: '#000000',
  },
}

SCSS

$custom: #3a63ab;
$custom-light: #7c8ec4;
$custom-dark: #000000;

JSON

{
  "hex": "#3a63ab",
  "rgb": {
    "r": 58,
    "g": 99,
    "b": 171
  },
  "hsl": {
    "h": 218.23,
    "s": 49.345,
    "l": 44.902
  },
  "oklch": {
    "l": 0.50642,
    "c": 0.12379,
    "h": 260.8
  },
  "luminance": 0.12763
}

Semantic roles & 50–950 ramp

primary

#3A63AB

secondary

#C1A980

accent

#A74FD9

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #3A63AB

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

Preview Lab → · Contrast checker → · Palette generator →