#4D51DB#4D51DB

#4D51DB is a mid, highly saturated blue. Relative luminance 0.126; OKLCH L 51.8% C 0.206 H 275.2°. Best body text is #FFFFFF at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#4D51DB
RGB	rgb(77, 81, 219)
HSL	hsl(238, 66%, 58%)
HSV	hsv(238, 65%, 86%)
CMYK	cmyk(64.8%, 63%, 0%, 14.1%)
CIE-LAB	lab(42.12, 40.74, -71.12)
CIE-LCH	lch(42.12, 81.97, 299.81°)
OKLab	oklab(51.76% 0.0188 -0.2051)
OKLCH	oklch(51.76% 0.206 275.2)
XYZ	xyz(18.7850, 12.5755, 68.4415)
Luminance	0.1258 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D51DB #DBD74D

analogous

#4D98DB #4D51DB #904DDB

triadic

#4D51DB #DB4D51 #51DB4D

tetradic

#4D51DB #DB4D98 #DBD74D #4DDB90

square

#4D51DB #DB4D98 #DBD74D #4DDB90

split-complementary

#4D51DB #DB904D #98DB4D

monochromatic

#1D2090 #272CC3 #4D51DB #8083E5 #B3B5F0

Accessibility & contrast

On white

5.97

#4D51DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#4D51DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4D51DB

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D51DB	#FFFFFF	#000000	##FFFFFF
##4D51DB	1.00	5.97	3.52	5.97
#FFFFFF	5.97	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ADF

Deuteranopia (green-blind)

#005DD8

Tritanopia (blue-blind)

#00748E

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4d51db;
/* rgb */ color: rgb(77, 81, 219);
/* oklch */ color: oklch(51.8% 0.206 275.2);

Tailwind

colors: {
  custom: {
    50: '#8f82e7',
    500: '#4d51db',
    950: '#000000',
  },
}

SCSS

$custom: #4d51db;
$custom-light: #8f82e7;
$custom-dark: #000000;

JSON

{
  "hex": "#4d51db",
  "rgb": {
    "r": 77,
    "g": 81,
    "b": 219
  },
  "hsl": {
    "h": 238.31,
    "s": 66.355,
    "l": 58.039
  },
  "oklch": {
    "l": 0.51763,
    "c": 0.20593,
    "h": 275.2
  },
  "luminance": 0.12577
}

Semantic roles & 50–950 ramp

primary

#4D51DB

secondary

#DEDDA6

accent

#E43FE9

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #4D51DB

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

Preview Lab → · Contrast checker → · Palette generator →