#4D5BCB#4D5BCB

#4D5BCB is a mid, vivid blue. Relative luminance 0.134; OKLCH L 52.3% C 0.173 H 273.5°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#4D5BCB
RGB	rgb(77, 91, 203)
HSL	hsl(233, 55%, 55%)
HSV	hsv(233, 62%, 80%)
CMYK	cmyk(62.1%, 55.2%, 0%, 20.4%)
CIE-LAB	lab(43.32, 29.20, -59.99)
CIE-LCH	lch(43.32, 66.72, 295.95°)
OKLab	oklab(52.27% 0.0105 -0.1723)
OKLCH	oklch(52.27% 0.173 273.5)
XYZ	xyz(17.5776, 13.3703, 58.1428)
Luminance	0.1337 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4D5BCB #CBBD4D

analogous

#4D9ACB #4D5BCB #7E4DCB

triadic

#4D5BCB #CB4D5B #5BCB4D

tetradic

#4D5BCB #CB4D9A #CBBD4D #4DCB7E

square

#4D5BCB #CB4D9A #CBBD4D #4DCB7E

split-complementary

#4D5BCB #CB7E4D #9ACB4D

monochromatic

#242D7A #313FA9 #4D5BCB #7C87D9 #ACB2E7

Accessibility & contrast

On white

5.72

#4D5BCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#4D5BCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4D5BCB

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4D5BCB	#FFFFFF	#000000	##FFFFFF
##4D5BCB	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CCF

Deuteranopia (green-blind)

#0061C9

Tritanopia (blue-blind)

#00768A

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #4d5bcb;
/* rgb */ color: rgb(77, 91, 203);
/* oklch */ color: oklch(52.3% 0.173 273.5);

Tailwind

colors: {
  custom: {
    50: '#8b89dc',
    500: '#4d5bcb',
    950: '#000000',
  },
}

SCSS

$custom: #4d5bcb;
$custom-light: #8b89dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4d5bcb",
  "rgb": {
    "r": 77,
    "g": 91,
    "b": 203
  },
  "hsl": {
    "h": 233.333,
    "s": 54.783,
    "l": 54.902
  },
  "oklch": {
    "l": 0.5227,
    "c": 0.17259,
    "h": 273.5
  },
  "luminance": 0.13372
}

Semantic roles & 50–950 ramp

primary

#4D5BCB

secondary

#D4CF9F

accent

#CE4ADE

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4D5BCB

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

Preview Lab → · Contrast checker → · Palette generator →