#4053BB#4053BB

#4053BB is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.7% C 0.164 H 271.2°. Best body text is #FFFFFF at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#4053BB
RGB	rgb(64, 83, 187)
HSL	hsl(231, 49%, 49%)
HSV	hsv(231, 66%, 73%)
CMYK	cmyk(65.8%, 55.6%, 0%, 26.7%)
CIE-LAB	lab(39.35, 26.58, -57.16)
CIE-LCH	lch(39.35, 63.03, 294.94°)
OKLab	oklab(48.73% 0.0034 -0.1643)
OKLCH	oklch(48.73% 0.164 271.2)
XYZ	xyz(14.1742, 10.8631, 48.3539)
Luminance	0.1086 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4053BB #BBA840

analogous

#4091BB #4053BB #6B40BB

triadic

#4053BB #BB4053 #53BB40

tetradic

#4053BB #BB4091 #BBA840 #40BB6B

square

#4053BB #BB4091 #BBA840 #40BB6B

split-complementary

#4053BB #BB6B40 #91BB40

monochromatic

#212B60 #303F8D #4053BB #6C7BCD #99A4DC

Accessibility & contrast

On white

6.62

#4053BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#4053BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4053BB

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4053BB	#FFFFFF	#000000	##FFFFFF
##4053BB	1.00	6.62	3.17	6.62
#FFFFFF	6.62	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062BF

Deuteranopia (green-blind)

#0057B9

Tritanopia (blue-blind)

#006C7F

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #4053bb;
/* rgb */ color: rgb(64, 83, 187);
/* oklch */ color: oklch(48.7% 0.164 271.2);

Tailwind

colors: {
  custom: {
    50: '#8283d0',
    500: '#4053bb',
    950: '#000000',
  },
}

SCSS

$custom: #4053bb;
$custom-light: #8283d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4053bb",
  "rgb": {
    "r": 64,
    "g": 83,
    "b": 187
  },
  "hsl": {
    "h": 230.732,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.48734,
    "c": 0.16439,
    "h": 271.2
  },
  "luminance": 0.10864
}

Semantic roles & 50–950 ramp

primary

#4053BB

secondary

#C8BF8F

accent

#C34FD9

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4053BB

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

Preview Lab → · Contrast checker → · Palette generator →