#4F55CF#4F55CF

#4F55CF is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.6% C 0.185 H 275.7°. Best body text is #FFFFFF at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#4F55CF
RGB	rgb(79, 85, 207)
HSL	hsl(237, 57%, 56%)
HSV	hsv(237, 62%, 81%)
CMYK	cmyk(61.8%, 58.9%, 0%, 18.8%)
CIE-LAB	lab(42.25, 34.62, -64.02)
CIE-LCH	lch(42.25, 72.78, 298.40°)
OKLab	oklab(51.6% 0.0183 -0.1841)
OKLCH	oklch(51.6% 0.185 275.7)
XYZ	xyz(17.7318, 12.6628, 60.5291)
Luminance	0.1266 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F55CF #CFC94F

analogous

#4F95CF #4F55CF #894FCF

triadic

#4F55CF #CF4F55 #55CF4F

tetradic

#4F55CF #CF4F95 #CFC94F #4FCF89

square

#4F55CF #CF4F95 #CFC94F #4FCF89

split-complementary

#4F55CF #CF894F #95CF4F

monochromatic

#232781 #3036B1 #4F55CF #7F83DC #AFB2E9

Accessibility & contrast

On white

5.94

#4F55CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#4F55CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F55CF

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F55CF	#FFFFFF	#000000	##FFFFFF
##4F55CF	1.00	5.94	3.53	5.94
#FFFFFF	5.94	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069D3

Deuteranopia (green-blind)

#005ECD

Tritanopia (blue-blind)

#00738A

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #4f55cf;
/* rgb */ color: rgb(79, 85, 207);
/* oklch */ color: oklch(51.6% 0.185 275.7);

Tailwind

colors: {
  custom: {
    50: '#8d85df',
    500: '#4f55cf',
    950: '#000000',
  },
}

SCSS

$custom: #4f55cf;
$custom-light: #8d85df;
$custom-dark: #000000;

JSON

{
  "hex": "#4f55cf",
  "rgb": {
    "r": 79,
    "g": 85,
    "b": 207
  },
  "hsl": {
    "h": 237.188,
    "s": 57.143,
    "l": 56.078
  },
  "oklch": {
    "l": 0.51603,
    "c": 0.18502,
    "h": 275.7
  },
  "luminance": 0.12664
}

Semantic roles & 50–950 ramp

primary

#4F55CF

secondary

#D7D5A2

accent

#D947E0

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4F55CF

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

Preview Lab → · Contrast checker → · Palette generator →