#4B50CB#4B50CB

#4B50CB is a mid, vivid blue. Relative luminance 0.115; OKLCH L 50.1% C 0.187 H 275.6°. Best body text is #FFFFFF at 6.35:1 contrast (WCAG AA passes).

Color values

HEX	#4B50CB
RGB	rgb(75, 80, 203)
HSL	hsl(238, 55%, 55%)
HSV	hsv(238, 63%, 80%)
CMYK	cmyk(63.1%, 60.6%, 0%, 20.4%)
CIE-LAB	lab(40.48, 35.73, -64.60)
CIE-LCH	lch(40.48, 73.82, 298.95°)
OKLab	oklab(50.13% 0.0182 -0.186)
OKLCH	oklch(50.13% 0.187 275.6)
XYZ	xyz(16.5463, 11.5436, 57.8445)
Luminance	0.1154 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B50CB #CBC64B

analogous

#4B90CB #4B50CB #864BCB

triadic

#4B50CB #CB4B50 #50CB4B

tetradic

#4B50CB #CB4B90 #CBC64B #4BCB86

square

#4B50CB #CB4B90 #CBC64B #4BCB86

split-complementary

#4B50CB #CB864B #90CB4B

monochromatic

#232679 #3135A8 #4B50CB #7A7ED9 #AAACE6

Accessibility & contrast

On white

6.35

#4B50CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.31

#4B50CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B50CB

6.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B50CB	#FFFFFF	#000000	##FFFFFF
##4B50CB	1.00	6.35	3.31	6.35
#FFFFFF	6.35	1.00	21.00	1.00
#000000	3.31	21.00	1.00	21.00
##FFFFFF	6.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065CF

Deuteranopia (green-blind)

#005AC9

Tritanopia (blue-blind)

#006E86

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #4b50cb;
/* rgb */ color: rgb(75, 80, 203);
/* oklch */ color: oklch(50.1% 0.187 275.6);

Tailwind

colors: {
  custom: {
    50: '#8b81dc',
    500: '#4b50cb',
    950: '#000000',
  },
}

SCSS

$custom: #4b50cb;
$custom-light: #8b81dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4b50cb",
  "rgb": {
    "r": 75,
    "g": 80,
    "b": 203
  },
  "hsl": {
    "h": 237.656,
    "s": 55.172,
    "l": 54.51
  },
  "oklch": {
    "l": 0.50132,
    "c": 0.18686,
    "h": 275.6
  },
  "luminance": 0.11545
}

Semantic roles & 50–950 ramp

primary

#4B50CB

secondary

#D4D29E

accent

#D949DF

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #4B50CB

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

Preview Lab → · Contrast checker → · Palette generator →