#4055B2#4055B2

#4055B2 is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.5% C 0.149 H 270.4°. Best body text is #FFFFFF at 6.65:1 contrast (WCAG AA passes).

Color values

HEX	#4055B2
RGB	rgb(64, 85, 178)
HSL	hsl(229, 47%, 47%)
HSV	hsv(229, 64%, 70%)
CMYK	cmyk(64%, 52.2%, 0%, 30.2%)
CIE-LAB	lab(39.24, 22.09, -52.04)
CIE-LCH	lch(39.24, 56.54, 293.00°)
OKLab	oklab(48.45% 0.001 -0.1493)
OKLCH	oklch(48.45% 0.149 270.4)
XYZ	xyz(13.3960, 10.8002, 43.4895)
Luminance	0.1080 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4055B2 #B29D40

analogous

#408EB2 #4055B2 #6440B2

triadic

#4055B2 #B24055 #55B240

tetradic

#4055B2 #B2408E #B29D40 #40B264

square

#4055B2 #B2408E #B29D40 #40B264

split-complementary

#4055B2 #B26440 #8EB240

monochromatic

#202A58 #304085 #4055B2 #6779C8 #94A1D8

Accessibility & contrast

On white

6.65

#4055B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.16

#4055B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4055B2

6.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4055B2	#FFFFFF	#000000	##FFFFFF
##4055B2	1.00	6.65	3.16	6.65
#FFFFFF	6.65	1.00	21.00	1.00
#000000	3.16	21.00	1.00	21.00
##FFFFFF	6.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D62B5

Deuteranopia (green-blind)

#0058B0

Tritanopia (blue-blind)

#006B7B

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #4055b2;
/* rgb */ color: rgb(64, 85, 178);
/* oklch */ color: oklch(48.5% 0.149 270.4);

Tailwind

colors: {
  custom: {
    50: '#8184ca',
    500: '#4055b2',
    950: '#000000',
  },
}

SCSS

$custom: #4055b2;
$custom-light: #8184ca;
$custom-dark: #000000;

JSON

{
  "hex": "#4055b2",
  "rgb": {
    "r": 64,
    "g": 85,
    "b": 178
  },
  "hsl": {
    "h": 228.947,
    "s": 47.107,
    "l": 47.451
  },
  "oklch": {
    "l": 0.48451,
    "c": 0.14928,
    "h": 270.4
  },
  "luminance": 0.10801
}

Semantic roles & 50–950 ramp

primary

#4055B2

secondary

#C4B98A

accent

#BE51D7

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #4055B2

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

Preview Lab → · Contrast checker → · Palette generator →