#4063BA#4063BA

#4063BA is a mid, vivid blue. Relative luminance 0.136; OKLCH L 51.9% C 0.143 H 265.3°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#4063BA
RGB	rgb(64, 99, 186)
HSL	hsl(223, 49%, 49%)
HSV	hsv(223, 66%, 73%)
CMYK	cmyk(65.6%, 46.8%, 0%, 27.1%)
CIE-LAB	lab(43.59, 15.94, -49.73)
CIE-LCH	lch(43.59, 52.22, 287.77°)
OKLab	oklab(51.93% -0.0117 -0.1423)
OKLCH	oklch(51.93% 0.143 265.3)
XYZ	xyz(15.4360, 13.5574, 48.2482)
Luminance	0.1356 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4063BA #BA9740

analogous

#40A0BA #4063BA #5A40BA

triadic

#4063BA #BA4063 #63BA40

tetradic

#4063BA #BA40A0 #BA9740 #40BA5A

square

#4063BA #BA40A0 #BA9740 #40BA5A

split-complementary

#4063BA #BA5A40 #A0BA40

monochromatic

#21335F #304B8C #4063BA #6B87CC #99ACDC

Accessibility & contrast

On white

5.66

#4063BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#4063BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4063BA

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4063BA	#FFFFFF	#000000	##FFFFFF
##4063BA	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#376DBD

Deuteranopia (green-blind)

#2062B8

Tritanopia (blue-blind)

#007785

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #4063ba;
/* rgb */ color: rgb(64, 99, 186);
/* oklch */ color: oklch(51.9% 0.143 265.3);

Tailwind

colors: {
  custom: {
    50: '#818ecf',
    500: '#4063ba',
    950: '#000000',
  },
}

SCSS

$custom: #4063ba;
$custom-light: #818ecf;
$custom-dark: #000000;

JSON

{
  "hex": "#4063ba",
  "rgb": {
    "r": 64,
    "g": 99,
    "b": 186
  },
  "hsl": {
    "h": 222.787,
    "s": 48.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.51926,
    "c": 0.14276,
    "h": 265.3
  },
  "luminance": 0.13559
}

Semantic roles & 50–950 ramp

primary

#4063BA

secondary

#C8B78E

accent

#B14FD8

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #4063BA

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

Preview Lab → · Contrast checker → · Palette generator →