#4055C7#4055C7

#4055C7 is a mid, vivid blue. Relative luminance 0.117; OKLCH L 50.1% C 0.178 H 270.7°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#4055C7
RGB	rgb(64, 85, 199)
HSL	hsl(231, 55%, 52%)
HSV	hsv(231, 68%, 78%)
CMYK	cmyk(67.8%, 57.3%, 0%, 22%)
CIE-LAB	lab(40.75, 29.54, -61.88)
CIE-LCH	lch(40.75, 68.57, 295.52°)
OKLab	oklab(50.06% 0.0021 -0.1782)
OKLCH	oklch(50.06% 0.178 270.7)
XYZ	xyz(15.6682, 11.7090, 55.4561)
Luminance	0.1171 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4055C7 #C7B240

analogous

#4099C7 #4055C7 #6F40C7

triadic

#4055C7 #C74055 #55C740

tetradic

#4055C7 #C74099 #C7B240 #40C76F

square

#4055C7 #C74099 #C7B240 #40C76F

split-complementary

#4055C7 #C76F40 #99C740

monochromatic

#202C6D #2E3F9C #4055C7 #6F7FD5 #9FA9E3

Accessibility & contrast

On white

6.28

#4055C7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#4055C7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4055C7

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4055C7	#FFFFFF	#000000	##FFFFFF
##4055C7	1.00	6.28	3.34	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066CB

Deuteranopia (green-blind)

#005AC5

Tritanopia (blue-blind)

#007186

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4055c7;
/* rgb */ color: rgb(64, 85, 199);
/* oklch */ color: oklch(50.1% 0.178 270.7);

Tailwind

colors: {
  custom: {
    50: '#8584d9',
    500: '#4055c7',
    950: '#000000',
  },
}

SCSS

$custom: #4055c7;
$custom-light: #8584d9;
$custom-dark: #000000;

JSON

{
  "hex": "#4055c7",
  "rgb": {
    "r": 64,
    "g": 85,
    "b": 199
  },
  "hsl": {
    "h": 230.667,
    "s": 54.656,
    "l": 51.569
  },
  "oklch": {
    "l": 0.50061,
    "c": 0.17821,
    "h": 270.7
  },
  "luminance": 0.11711
}

Semantic roles & 50–950 ramp

primary

#4055C7

secondary

#CFC694

accent

#C74ADE

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #4055C7

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

Preview Lab → · Contrast checker → · Palette generator →