#4055BC#4055BC

#4055BC is a mid, vivid blue. Relative luminance 0.112; OKLCH L 49.2% C 0.163 H 270.6°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#4055BC
RGB	rgb(64, 85, 188)
HSL	hsl(230, 49%, 49%)
HSV	hsv(230, 66%, 74%)
CMYK	cmyk(66%, 54.8%, 0%, 26.3%)
CIE-LAB	lab(39.94, 25.64, -56.78)
CIE-LCH	lch(39.94, 62.30, 294.31°)
OKLab	oklab(49.2% 0.0017 -0.1632)
OKLCH	oklch(49.2% 0.163 270.6)
XYZ	xyz(14.4369, 11.2165, 48.9714)
Luminance	0.1122 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4055BC #BCA740

analogous

#4093BC #4055BC #6940BC

triadic

#4055BC #BC4055 #55BC40

tetradic

#4055BC #BC4093 #BCA740 #40BC69

square

#4055BC #BC4093 #BCA740 #40BC69

split-complementary

#4055BC #BC6940 #93BC40

monochromatic

#212C61 #30408E #4055BC #6C7DCD #9AA5DD

Accessibility & contrast

On white

6.47

#4055BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#4055BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4055BC

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4055BC	#FFFFFF	#000000	##FFFFFF
##4055BC	1.00	6.47	3.24	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0164C0

Deuteranopia (green-blind)

#0059BA

Tritanopia (blue-blind)

#006E80

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #4055bc;
/* rgb */ color: rgb(64, 85, 188);
/* oklch */ color: oklch(49.2% 0.163 270.6);

Tailwind

colors: {
  custom: {
    50: '#8284d1',
    500: '#4055bc',
    950: '#000000',
  },
}

SCSS

$custom: #4055bc;
$custom-light: #8284d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4055bc",
  "rgb": {
    "r": 64,
    "g": 85,
    "b": 188
  },
  "hsl": {
    "h": 229.839,
    "s": 49.206,
    "l": 49.412
  },
  "oklch": {
    "l": 0.49202,
    "c": 0.16322,
    "h": 270.6
  },
  "luminance": 0.11218
}

Semantic roles & 50–950 ramp

primary

#4055BC

secondary

#C9BF8F

accent

#C14FD9

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0A14

muted

#7D7C82

Preview Lab

Preview with #4055BC

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

Preview Lab → · Contrast checker → · Palette generator →