#4D51DA#4D51DA

#4D51DA is a mid, highly saturated blue. Relative luminance 0.125; OKLCH L 51.7% C 0.205 H 275.3°. Best body text is #FFFFFF at 5.99:1 contrast (WCAG AA passes).

Color values

HEX	#4D51DA
RGB	rgb(77, 81, 218)
HSL	hsl(238, 66%, 58%)
HSV	hsv(238, 65%, 85%)
CMYK	cmyk(64.7%, 62.8%, 0%, 14.5%)
CIE-LAB	lab(42.04, 40.41, -70.68)
CIE-LCH	lch(42.04, 81.42, 299.76°)
OKLab	oklab(51.68% 0.0189 -0.2038)
OKLCH	oklch(51.68% 0.205 275.3)
XYZ	xyz(18.6537, 12.5230, 67.7502)
Luminance	0.1253 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D51DA #DAD64D

analogous

#4D97DA #4D51DA #8F4DDA

triadic

#4D51DA #DA4D51 #51DA4D

tetradic

#4D51DA #DA4D97 #DAD64D #4DDA8F

square

#4D51DA #DA4D97 #DAD64D #4DDA8F

split-complementary

#4D51DA #DA8F4D #97DA4D

monochromatic

#1E218F #282DC2 #4D51DA #8083E5 #B2B4EF

Accessibility & contrast

On white

5.99

#4D51DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#4D51DA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4D51DA

5.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D51DA	#FFFFFF	#000000	##FFFFFF
##4D51DA	1.00	5.99	3.51	5.99
#FFFFFF	5.99	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.99	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: #4d51da;
/* rgb */ color: rgb(77, 81, 218);
/* oklch */ color: oklch(51.7% 0.205 275.3);

Tailwind

colors: {
  custom: {
    50: '#8e82e6',
    500: '#4d51da',
    950: '#000000',
  },
}

SCSS

$custom: #4d51da;
$custom-light: #8e82e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4d51da",
  "rgb": {
    "r": 77,
    "g": 81,
    "b": 218
  },
  "hsl": {
    "h": 238.298,
    "s": 65.581,
    "l": 57.843
  },
  "oklch": {
    "l": 0.51678,
    "c": 0.20465,
    "h": 275.3
  },
  "luminance": 0.12525
}

Semantic roles & 50–950 ramp

primary

#4D51DA

secondary

#DEDCA5

accent

#E43FE9

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #4D51DA

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

Preview Lab → · Contrast checker → · Palette generator →