#4055D3#4055D3

#4055D3 is a mid, vivid blue. Relative luminance 0.123; OKLCH L 51.0% C 0.194 H 270.6°. Best body text is #FFFFFF at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#4055D3
RGB	rgb(64, 85, 211)
HSL	hsl(231, 63%, 54%)
HSV	hsv(231, 70%, 83%)
CMYK	cmyk(69.7%, 59.7%, 0%, 17.3%)
CIE-LAB	lab(41.67, 33.77, -67.30)
CIE-LCH	lch(41.67, 75.30, 296.65°)
OKLab	oklab(51.04% 0.0022 -0.1941)
OKLCH	oklch(51.04% 0.194 270.6)
XYZ	xyz(17.1167, 12.2884, 63.0852)
Luminance	0.1229 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4055D3 #D3BE40

analogous

#409ED3 #4055D3 #7540D3

triadic

#4055D3 #D34055 #55D340

tetradic

#4055D3 #D3409E #D3BE40 #40D375

square

#4055D3 #D3409E #D3BE40 #40D375

split-complementary

#4055D3 #D37540 #9ED340

monochromatic

#1D2A7C #283BAE #4055D3 #7281DE #A3AEEA

Accessibility & contrast

On white

6.07

#4055D3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#4055D3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4055D3

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4055D3	#FFFFFF	#000000	##FFFFFF
##4055D3	1.00	6.07	3.46	6.07
#FFFFFF	6.07	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069D7

Deuteranopia (green-blind)

#005CD1

Tritanopia (blue-blind)

#00758C

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #4055d3;
/* rgb */ color: rgb(64, 85, 211);
/* oklch */ color: oklch(51.0% 0.194 270.6);

Tailwind

colors: {
  custom: {
    50: '#8784e1',
    500: '#4055d3',
    950: '#000000',
  },
}

SCSS

$custom: #4055d3;
$custom-light: #8784e1;
$custom-dark: #000000;

JSON

{
  "hex": "#4055d3",
  "rgb": {
    "r": 64,
    "g": 85,
    "b": 211
  },
  "hsl": {
    "h": 231.429,
    "s": 62.553,
    "l": 53.922
  },
  "oklch": {
    "l": 0.51035,
    "c": 0.19414,
    "h": 270.6
  },
  "luminance": 0.1229
}

Semantic roles & 50–950 ramp

primary

#4055D3

secondary

#D7CE98

accent

#CE42E6

background

#F9F8FD

surface

#F1EFFB

border

#CBCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4055D3

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

Preview Lab → · Contrast checker → · Palette generator →