#4F51CA#4F51CA

#4F51CA is a mid, vivid blue. Relative luminance 0.118; OKLCH L 50.5% C 0.183 H 276.9°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#4F51CA
RGB	rgb(79, 81, 202)
HSL	hsl(239, 54%, 55%)
HSV	hsv(239, 61%, 79%)
CMYK	cmyk(60.9%, 59.9%, 0%, 20.8%)
CIE-LAB	lab(40.91, 35.42, -63.31)
CIE-LCH	lch(40.91, 72.54, 299.23°)
OKLab	oklab(50.5% 0.022 -0.1821)
OKLCH	oklch(50.5% 0.183 276.9)
XYZ	xyz(16.8241, 11.8101, 57.2587)
Luminance	0.1181 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F51CA #CAC84F

analogous

#4F8FCA #4F51CA #8A4FCA

triadic

#4F51CA #CA4F51 #51CA4F

tetradic

#4F51CA #CA4F8F #CAC84F #4FCA8A

square

#4F51CA #CA4F8F #CAC84F #4FCA8A

split-complementary

#4F51CA #CA8A4F #8FCA4F

monochromatic

#25267A #3335A9 #4F51CA #7E80D8 #ADAEE6

Accessibility & contrast

On white

6.25

#4F51CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#4F51CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F51CA

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F51CA	#FFFFFF	#000000	##FFFFFF
##4F51CA	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066CE

Deuteranopia (green-blind)

#005BC8

Tritanopia (blue-blind)

#006F86

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #4f51ca;
/* rgb */ color: rgb(79, 81, 202);
/* oklch */ color: oklch(50.5% 0.183 276.9);

Tailwind

colors: {
  custom: {
    50: '#8d82db',
    500: '#4f51ca',
    950: '#000000',
  },
}

SCSS

$custom: #4f51ca;
$custom-light: #8d82db;
$custom-dark: #000000;

JSON

{
  "hex": "#4f51ca",
  "rgb": {
    "r": 79,
    "g": 81,
    "b": 202
  },
  "hsl": {
    "h": 239.024,
    "s": 53.712,
    "l": 55.098
  },
  "oklch": {
    "l": 0.50496,
    "c": 0.18339,
    "h": 276.9
  },
  "luminance": 0.11811
}

Semantic roles & 50–950 ramp

primary

#4F51CA

secondary

#D4D3A1

accent

#DB4BDD

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #4F51CA

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

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