#4F51DA#4F51DA

#4F51DA is a mid, highly saturated blue. Relative luminance 0.126; OKLCH L 51.8% C 0.204 H 276.0°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#4F51DA
RGB	rgb(79, 81, 218)
HSL	hsl(239, 65%, 58%)
HSV	hsv(239, 64%, 85%)
CMYK	cmyk(63.8%, 62.8%, 0%, 14.5%)
CIE-LAB	lab(42.17, 40.70, -70.47)
CIE-LCH	lch(42.17, 81.37, 300.01°)
OKLab	oklab(51.81% 0.0212 -0.2031)
OKLCH	oklch(51.81% 0.204 276)
XYZ	xyz(18.8176, 12.6075, 67.7579)
Luminance	0.1261 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F51DA #DAD84F

analogous

#4F96DA #4F51DA #924FDA

triadic

#4F51DA #DA4F51 #51DA4F

tetradic

#4F51DA #DA4F96 #DAD84F #4FDA92

square

#4F51DA #DA4F96 #DAD84F #4FDA92

split-complementary

#4F51DA #DA924F #96DA4F

monochromatic

#1E2090 #292BC3 #4F51DA #8283E5 #B4B5EF

Accessibility & contrast

On white

5.96

#4F51DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#4F51DA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F51DA

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F51DA	#FFFFFF	#000000	##FFFFFF
##4F51DA	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ADE

Deuteranopia (green-blind)

#005DD7

Tritanopia (blue-blind)

#00748E

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4f51da;
/* rgb */ color: rgb(79, 81, 218);
/* oklch */ color: oklch(51.8% 0.204 276.0);

Tailwind

colors: {
  custom: {
    50: '#8f82e6',
    500: '#4f51da',
    950: '#000000',
  },
}

SCSS

$custom: #4f51da;
$custom-light: #8f82e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4f51da",
  "rgb": {
    "r": 79,
    "g": 81,
    "b": 218
  },
  "hsl": {
    "h": 239.137,
    "s": 65.258,
    "l": 58.235
  },
  "oklch": {
    "l": 0.51808,
    "c": 0.20419,
    "h": 276
  },
  "luminance": 0.12609
}

Semantic roles & 50–950 ramp

primary

#4F51DA

secondary

#DEDDA7

accent

#E640E8

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #4F51DA

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

Preview Lab → · Contrast checker → · Palette generator →