#4053BC#4053BC

#4053BC is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.8% C 0.166 H 271.2°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#4053BC
RGB	rgb(64, 83, 188)
HSL	hsl(231, 49%, 49%)
HSV	hsv(231, 66%, 74%)
CMYK	cmyk(66%, 55.9%, 0%, 26.3%)
CIE-LAB	lab(39.42, 26.93, -57.63)
CIE-LCH	lch(39.42, 63.61, 295.05°)
OKLab	oklab(48.81% 0.0034 -0.1657)
OKLCH	oklch(48.81% 0.166 271.2)
XYZ	xyz(14.2816, 10.9060, 48.9196)
Luminance	0.1091 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4053BC #BCA940

analogous

#4091BC #4053BC #6B40BC

triadic

#4053BC #BC4053 #53BC40

tetradic

#4053BC #BC4091 #BCA940 #40BC6B

square

#4053BC #BC4091 #BCA940 #40BC6B

split-complementary

#4053BC #BC6B40 #91BC40

monochromatic

#212B61 #303F8E #4053BC #6C7BCD #9AA4DD

Accessibility & contrast

On white

6.60

#4053BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#4053BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4053BC

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4053BC	#FFFFFF	#000000	##FFFFFF
##4053BC	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C0

Deuteranopia (green-blind)

#0057BA

Tritanopia (blue-blind)

#006C7F

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #4053bc;
/* rgb */ color: rgb(64, 83, 188);
/* oklch */ color: oklch(48.8% 0.166 271.2);

Tailwind

colors: {
  custom: {
    50: '#8383d1',
    500: '#4053bc',
    950: '#000000',
  },
}

SCSS

$custom: #4053bc;
$custom-light: #8383d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4053bc",
  "rgb": {
    "r": 64,
    "g": 83,
    "b": 188
  },
  "hsl": {
    "h": 230.806,
    "s": 49.206,
    "l": 49.412
  },
  "oklch": {
    "l": 0.48811,
    "c": 0.16576,
    "h": 271.2
  },
  "luminance": 0.10907
}

Semantic roles & 50–950 ramp

primary

#4053BC

secondary

#C9C08F

accent

#C44FD9

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4053BC

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

Preview Lab → · Contrast checker → · Palette generator →