#4055BB#4055BB

#4055BB is a mid, vivid blue. Relative luminance 0.112; OKLCH L 49.1% C 0.162 H 270.6°. Best body text is #FFFFFF at 6.49:1 contrast (WCAG AA passes).

Color values

HEX	#4055BB
RGB	rgb(64, 85, 187)
HSL	hsl(230, 49%, 49%)
HSV	hsv(230, 66%, 73%)
CMYK	cmyk(65.8%, 54.5%, 0%, 26.7%)
CIE-LAB	lab(39.87, 25.29, -56.31)
CIE-LCH	lch(39.87, 61.73, 294.18°)
OKLab	oklab(49.13% 0.0016 -0.1618)
OKLCH	oklch(49.13% 0.162 270.6)
XYZ	xyz(14.3295, 11.1735, 48.4056)
Luminance	0.1118 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4055BB #BBA640

analogous

#4093BB #4055BB #6940BB

triadic

#4055BB #BB4055 #55BB40

tetradic

#4055BB #BB4093 #BBA640 #40BB69

square

#4055BB #BB4093 #BBA640 #40BB69

split-complementary

#4055BB #BB6940 #93BB40

monochromatic

#212C60 #30408D #4055BB #6C7CCD #99A5DC

Accessibility & contrast

On white

6.49

#4055BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#4055BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4055BB

6.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4055BB	#FFFFFF	#000000	##FFFFFF
##4055BB	1.00	6.49	3.24	6.49
#FFFFFF	6.49	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0564BF

Deuteranopia (green-blind)

#0059B9

Tritanopia (blue-blind)

#006D80

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #4055bb;
/* rgb */ color: rgb(64, 85, 187);
/* oklch */ color: oklch(49.1% 0.162 270.6);

Tailwind

colors: {
  custom: {
    50: '#8284d0',
    500: '#4055bb',
    950: '#000000',
  },
}

SCSS

$custom: #4055bb;
$custom-light: #8284d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4055bb",
  "rgb": {
    "r": 64,
    "g": 85,
    "b": 187
  },
  "hsl": {
    "h": 229.756,
    "s": 49.004,
    "l": 49.216
  },
  "oklch": {
    "l": 0.49126,
    "c": 0.16184,
    "h": 270.6
  },
  "luminance": 0.11175
}

Semantic roles & 50–950 ramp

primary

#4055BB

secondary

#C8BE8F

accent

#C14FD9

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4055BB

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

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