#4063AC#4063AC

#4063AC is a mid, vivid blue. Relative luminance 0.130; OKLCH L 51.0% C 0.123 H 263.4°. Best body text is #FFFFFF at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#4063AC
RGB	rgb(64, 99, 172)
HSL	hsl(221, 46%, 46%)
HSV	hsv(221, 63%, 67%)
CMYK	cmyk(62.8%, 42.4%, 0%, 32.5%)
CIE-LAB	lab(42.75, 10.95, -42.88)
CIE-LCH	lch(42.75, 44.26, 284.33°)
OKLab	oklab(51.01% -0.0142 -0.1222)
OKLCH	oklch(51.01% 0.123 263.4)
XYZ	xyz(14.0200, 12.9910, 40.7904)
Luminance	0.1299 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4063AC #AC8940

analogous

#4099AC #4063AC #5340AC

triadic

#4063AC #AC4063 #63AC40

tetradic

#4063AC #AC4099 #AC8940 #40AC53

square

#4063AC #AC4099 #AC8940 #40AC53

split-complementary

#4063AC #AC5340 #99AC40

monochromatic

#1F3053 #2F497F #4063AC #6483C5 #91A7D6

Accessibility & contrast

On white

5.84

#4063AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#4063AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4063AC

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4063AC	#FFFFFF	#000000	##FFFFFF
##4063AC	1.00	5.84	3.60	5.84
#FFFFFF	5.84	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#426AAF

Deuteranopia (green-blind)

#3260AA

Tritanopia (blue-blind)

#00737F

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #4063ac;
/* rgb */ color: rgb(64, 99, 172);
/* oklch */ color: oklch(51.0% 0.123 263.4);

Tailwind

colors: {
  custom: {
    50: '#7f8fc5',
    500: '#4063ac',
    950: '#000000',
  },
}

SCSS

$custom: #4063ac;
$custom-light: #7f8fc5;
$custom-dark: #000000;

JSON

{
  "hex": "#4063ac",
  "rgb": {
    "r": 64,
    "g": 99,
    "b": 172
  },
  "hsl": {
    "h": 220.556,
    "s": 45.763,
    "l": 46.275
  },
  "oklch": {
    "l": 0.51008,
    "c": 0.12298,
    "h": 263.4
  },
  "luminance": 0.12992
}

Semantic roles & 50–950 ramp

primary

#4063AC

secondary

#C1AE87

accent

#AB52D5

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #4063AC

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

Preview Lab → · Contrast checker → · Palette generator →