#4A51DB#4A51DB

#4A51DB is a mid, highly saturated blue. Relative luminance 0.125; OKLCH L 51.6% C 0.207 H 274.3°. Best body text is #FFFFFF at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#4A51DB
RGB	rgb(74, 81, 219)
HSL	hsl(237, 67%, 57%)
HSV	hsv(237, 66%, 86%)
CMYK	cmyk(66.2%, 63%, 0%, 14.1%)
CIE-LAB	lab(41.93, 40.33, -71.44)
CIE-LCH	lch(41.93, 82.04, 299.45°)
OKLab	oklab(51.58% 0.0154 -0.2061)
OKLCH	oklch(51.58% 0.207 274.3)
XYZ	xyz(18.5484, 12.4535, 68.4304)
Luminance	0.1245 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4A51DB #DBD44A

analogous

#4A9ADB #4A51DB #8B4ADB

triadic

#4A51DB #DB4A51 #51DB4A

tetradic

#4A51DB #DB4A9A #DBD44A #4ADB8B

square

#4A51DB #DB4A9A #DBD44A #4ADB8B

split-complementary

#4A51DB #DB8B4A #9ADB4A

monochromatic

#1C228E #262EC1 #4A51DB #7D82E5 #B0B3EF

Accessibility & contrast

On white

6.02

#4A51DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#4A51DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4A51DB

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4A51DB	#FFFFFF	#000000	##FFFFFF
##4A51DB	1.00	6.02	3.49	6.02
#FFFFFF	6.02	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006ADF

Deuteranopia (green-blind)

#005CD8

Tritanopia (blue-blind)

#00748E

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4a51db;
/* rgb */ color: rgb(74, 81, 219);
/* oklch */ color: oklch(51.6% 0.207 274.3);

Tailwind

colors: {
  custom: {
    50: '#8d82e7',
    500: '#4a51db',
    950: '#000000',
  },
}

SCSS

$custom: #4a51db;
$custom-light: #8d82e7;
$custom-dark: #000000;

JSON

{
  "hex": "#4a51db",
  "rgb": {
    "r": 74,
    "g": 81,
    "b": 219
  },
  "hsl": {
    "h": 237.103,
    "s": 66.82,
    "l": 57.451
  },
  "oklch": {
    "l": 0.51575,
    "c": 0.20665,
    "h": 274.3
  },
  "luminance": 0.12455
}

Semantic roles & 50–950 ramp

primary

#4A51DB

secondary

#DEDBA3

accent

#E13EEA

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #4A51DB

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

Preview Lab → · Contrast checker → · Palette generator →