#4055AA#4055AA

#4055AA is a mid, vivid blue. Relative luminance 0.105; OKLCH L 47.9% C 0.138 H 270.1°. Best body text is #FFFFFF at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#4055AA
RGB	rgb(64, 85, 170)
HSL	hsl(228, 45%, 46%)
HSV	hsv(228, 62%, 67%)
CMYK	cmyk(62.4%, 50%, 0%, 33.3%)
CIE-LAB	lab(38.70, 19.26, -48.18)
CIE-LCH	lch(38.70, 51.89, 291.79°)
OKLab	oklab(47.87% 0.0001 -0.1379)
OKLCH	oklch(47.87% 0.138 270.1)
XYZ	xyz(12.6161, 10.4882, 39.3820)
Luminance	0.1049 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4055AA #AA9540

analogous

#408AAA #4055AA #6040AA

triadic

#4055AA #AA4055 #55AA40

tetradic

#4055AA #AA408A #AA9540 #40AA60

square

#4055AA #AA408A #AA9540 #40AA60

split-complementary

#4055AA #AA6040 #8AAA40

monochromatic

#1F2951 #2F3F7E #4055AA #6376C4 #8F9DD5

Accessibility & contrast

On white

6.78

#4055AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#4055AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4055AA

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4055AA	#FFFFFF	#000000	##FFFFFF
##4055AA	1.00	6.78	3.10	6.78
#FFFFFF	6.78	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2860AD

Deuteranopia (green-blind)

#1057A8

Tritanopia (blue-blind)

#006977

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #4055aa;
/* rgb */ color: rgb(64, 85, 170);
/* oklch */ color: oklch(47.9% 0.138 270.1);

Tailwind

colors: {
  custom: {
    50: '#7f84c4',
    500: '#4055aa',
    950: '#000000',
  },
}

SCSS

$custom: #4055aa;
$custom-light: #7f84c4;
$custom-dark: #000000;

JSON

{
  "hex": "#4055aa",
  "rgb": {
    "r": 64,
    "g": 85,
    "b": 170
  },
  "hsl": {
    "h": 228.113,
    "s": 45.299,
    "l": 45.882
  },
  "oklch": {
    "l": 0.47873,
    "c": 0.1379,
    "h": 270.1
  },
  "luminance": 0.10489
}

Semantic roles & 50–950 ramp

primary

#4055AA

secondary

#C0B586

accent

#BB53D5

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #4055AA

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

Preview Lab → · Contrast checker → · Palette generator →