#4B51E8#4B51E8

#4B51E8 is a mid, highly saturated blue. Relative luminance 0.132; OKLCH L 52.8% C 0.223 H 274.0°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#4B51E8
RGB	rgb(75, 81, 232)
HSL	hsl(238, 77%, 60%)
HSV	hsv(238, 68%, 91%)
CMYK	cmyk(67.7%, 65.1%, 0%, 9%)
CIE-LAB	lab(43.07, 44.77, -76.96)
CIE-LCH	lch(43.07, 89.03, 300.19°)
OKLab	oklab(52.76% 0.0156 -0.2222)
OKLCH	oklch(52.76% 0.223 274)
XYZ	xyz(20.4047, 13.2050, 77.8018)
Luminance	0.1321 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B51E8 #E8E24B

analogous

#4B9FE8 #4B51E8 #934BE8

triadic

#4B51E8 #E84B51 #51E84B

tetradic

#4B51E8 #E84B9F #E8E24B #4BE893

square

#4B51E8 #E84B9F #E8E24B #4BE893

split-complementary

#4B51E8 #E8934B #9FE84B

monochromatic

#151AA4 #1C23DA #4B51E8 #8185EF #B8BAF6

Accessibility & contrast

On white

5.77

#4B51E8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#4B51E8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B51E8

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B51E8	#FFFFFF	#000000	##FFFFFF
##4B51E8	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006DED

Deuteranopia (green-blind)

#005FE5

Tritanopia (blue-blind)

#007995

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #4b51e8;
/* rgb */ color: rgb(75, 81, 232);
/* oklch */ color: oklch(52.8% 0.223 274.0);

Tailwind

colors: {
  custom: {
    50: '#9082f0',
    500: '#4b51e8',
    950: '#000000',
  },
}

SCSS

$custom: #4b51e8;
$custom-light: #9082f0;
$custom-dark: #000000;

JSON

{
  "hex": "#4b51e8",
  "rgb": {
    "r": 75,
    "g": 81,
    "b": 232
  },
  "hsl": {
    "h": 237.707,
    "s": 77.34,
    "l": 60.196
  },
  "oklch": {
    "l": 0.52759,
    "c": 0.22276,
    "h": 274
  },
  "luminance": 0.13207
}

Semantic roles & 50–950 ramp

primary

#4B51E8

secondary

#E6E3A9

accent

#D20CDA

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0A17

muted

#7E7C85

Preview Lab

Preview with #4B51E8

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

Preview Lab → · Contrast checker → · Palette generator →