#4055BF#4055BF

#4055BF is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.4% C 0.167 H 270.6°. Best body text is #FFFFFF at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#4055BF
RGB	rgb(64, 85, 191)
HSL	hsl(230, 50%, 50%)
HSV	hsv(230, 66%, 75%)
CMYK	cmyk(66.5%, 55.5%, 0%, 25.1%)
CIE-LAB	lab(40.16, 26.71, -58.18)
CIE-LCH	lch(40.16, 64.02, 294.66°)
OKLab	oklab(49.43% 0.0018 -0.1673)
OKLCH	oklch(49.43% 0.167 270.6)
XYZ	xyz(14.7636, 11.3472, 50.6923)
Luminance	0.1135 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4055BF #BFAA40

analogous

#4094BF #4055BF #6B40BF

triadic

#4055BF #BF4055 #55BF40

tetradic

#4055BF #BF4094 #BFAA40 #40BF6B

square

#4055BF #BF4094 #BFAA40 #40BF6B

split-complementary

#4055BF #BF6B40 #94BF40

monochromatic

#212C63 #314191 #4055BF #6E7ECE #9CA7DE

Accessibility & contrast

On white

6.42

#4055BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#4055BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4055BF

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4055BF	#FFFFFF	#000000	##FFFFFF
##4055BF	1.00	6.42	3.27	6.42
#FFFFFF	6.42	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065C3

Deuteranopia (green-blind)

#0059BD

Tritanopia (blue-blind)

#006E82

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #4055bf;
/* rgb */ color: rgb(64, 85, 191);
/* oklch */ color: oklch(49.4% 0.167 270.6);

Tailwind

colors: {
  custom: {
    50: '#8384d3',
    500: '#4055bf',
    950: '#000000',
  },
}

SCSS

$custom: #4055bf;
$custom-light: #8384d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4055bf",
  "rgb": {
    "r": 64,
    "g": 85,
    "b": 191
  },
  "hsl": {
    "h": 230.079,
    "s": 49.804,
    "l": 50
  },
  "oklch": {
    "l": 0.49433,
    "c": 0.16735,
    "h": 270.6
  },
  "luminance": 0.11349
}

Semantic roles & 50–950 ramp

primary

#4055BF

secondary

#CAC091

accent

#C24ED9

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0A14

muted

#7D7C83

Preview Lab

Preview with #4055BF

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

Preview Lab → · Contrast checker → · Palette generator →