#4F55D1#4F55D1

#4F55D1 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.8% C 0.188 H 275.6°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#4F55D1
RGB	rgb(79, 85, 209)
HSL	hsl(237, 59%, 56%)
HSV	hsv(237, 62%, 82%)
CMYK	cmyk(62.2%, 59.3%, 0%, 18%)
CIE-LAB	lab(42.40, 35.28, -64.92)
CIE-LCH	lch(42.40, 73.89, 298.52°)
OKLab	oklab(51.76% 0.0182 -0.1868)
OKLCH	oklch(51.76% 0.188 275.6)
XYZ	xyz(17.9778, 12.7613, 61.8250)
Luminance	0.1276 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F55D1 #D1CB4F

analogous

#4F96D1 #4F55D1 #8A4FD1

triadic

#4F55D1 #D14F55 #55D14F

tetradic

#4F55D1 #D14F96 #D1CB4F #4FD18A

square

#4F55D1 #D14F96 #D1CB4F #4FD18A

split-complementary

#4F55D1 #D18A4F #96D14F

monochromatic

#222783 #2F35B4 #4F55D1 #8084DE #B0B3EA

Accessibility & contrast

On white

5.91

#4F55D1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#4F55D1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F55D1

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F55D1	#FFFFFF	#000000	##FFFFFF
##4F55D1	1.00	5.91	3.55	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD5

Deuteranopia (green-blind)

#005FCF

Tritanopia (blue-blind)

#00738B

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #4f55d1;
/* rgb */ color: rgb(79, 85, 209);
/* oklch */ color: oklch(51.8% 0.188 275.6);

Tailwind

colors: {
  custom: {
    50: '#8d85e0',
    500: '#4f55d1',
    950: '#000000',
  },
}

SCSS

$custom: #4f55d1;
$custom-light: #8d85e0;
$custom-dark: #000000;

JSON

{
  "hex": "#4f55d1",
  "rgb": {
    "r": 79,
    "g": 85,
    "b": 209
  },
  "hsl": {
    "h": 237.231,
    "s": 58.559,
    "l": 56.471
  },
  "oklch": {
    "l": 0.51762,
    "c": 0.18767,
    "h": 275.6
  },
  "luminance": 0.12763
}

Semantic roles & 50–950 ramp

primary

#4F55D1

secondary

#D9D6A3

accent

#DB46E2

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4F55D1

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

Preview Lab → · Contrast checker → · Palette generator →