#4D57DB#4D57DB

#4D57DB is a mid, vivid blue. Relative luminance 0.135; OKLCH L 52.8% C 0.199 H 274.1°. Best body text is #FFFFFF at 5.67:1 contrast (WCAG AA passes).

Color values

HEX	#4D57DB
RGB	rgb(77, 87, 219)
HSL	hsl(236, 66%, 58%)
HSV	hsv(236, 65%, 86%)
CMYK	cmyk(64.8%, 60.3%, 0%, 14.1%)
CIE-LAB	lab(43.52, 37.09, -68.84)
CIE-LCH	lch(43.52, 78.19, 298.32°)
OKLab	oklab(52.79% 0.0141 -0.1983)
OKLCH	oklch(52.79% 0.199 274.1)
XYZ	xyz(19.2507, 13.5070, 68.5967)
Luminance	0.1351 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D57DB #DBD14D

analogous

#4D9EDB #4D57DB #8A4DDB

triadic

#4D57DB #DB4D57 #57DB4D

tetradic

#4D57DB #DB4D9E #DBD14D #4DDB8A

square

#4D57DB #DB4D9E #DBD14D #4DDB8A

split-complementary

#4D57DB #DB8A4D #9EDB4D

monochromatic

#1D2590 #2732C3 #4D57DB #8087E5 #B3B7F0

Accessibility & contrast

On white

5.67

#4D57DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#4D57DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4D57DB

5.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D57DB	#FFFFFF	#000000	##FFFFFF
##4D57DB	1.00	5.67	3.70	5.67
#FFFFFF	5.67	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DDF

Deuteranopia (green-blind)

#0061D8

Tritanopia (blue-blind)

#007891

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #4d57db;
/* rgb */ color: rgb(77, 87, 219);
/* oklch */ color: oklch(52.8% 0.199 274.1);

Tailwind

colors: {
  custom: {
    50: '#8e86e7',
    500: '#4d57db',
    950: '#000000',
  },
}

SCSS

$custom: #4d57db;
$custom-light: #8e86e7;
$custom-dark: #000000;

JSON

{
  "hex": "#4d57db",
  "rgb": {
    "r": 77,
    "g": 87,
    "b": 219
  },
  "hsl": {
    "h": 235.775,
    "s": 66.355,
    "l": 58.039
  },
  "oklch": {
    "l": 0.52792,
    "c": 0.19882,
    "h": 274.1
  },
  "luminance": 0.13509
}

Semantic roles & 50–950 ramp

primary

#4D57DB

secondary

#DEDAA6

accent

#DD3FE9

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #4D57DB

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

Preview Lab → · Contrast checker → · Palette generator →