#4B5BCB#4B5BCB

#4B5BCB is a mid, vivid blue. Relative luminance 0.133; OKLCH L 52.1% C 0.173 H 272.8°. Best body text is #FFFFFF at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#4B5BCB
RGB	rgb(75, 91, 203)
HSL	hsl(233, 55%, 55%)
HSV	hsv(233, 63%, 80%)
CMYK	cmyk(63.1%, 55.2%, 0%, 20.4%)
CIE-LAB	lab(43.19, 28.86, -60.19)
CIE-LCH	lch(43.19, 66.75, 295.61°)
OKLab	oklab(52.15% 0.0084 -0.1729)
OKLCH	oklch(52.15% 0.173 272.8)
XYZ	xyz(17.4186, 13.2883, 58.1353)
Luminance	0.1329 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B5BCB #CBBB4B

analogous

#4B9BCB #4B5BCB #7B4BCB

triadic

#4B5BCB #CB4B5B #5BCB4B

tetradic

#4B5BCB #CB4B9B #CBBB4B #4BCB7B

square

#4B5BCB #CB4B9B #CBBB4B #4BCB7B

split-complementary

#4B5BCB #CB7B4B #9BCB4B

monochromatic

#232E79 #3140A8 #4B5BCB #7A86D9 #AAB2E6

Accessibility & contrast

On white

5.74

#4B5BCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.66

#4B5BCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B5BCB

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B5BCB	#FFFFFF	#000000	##FFFFFF
##4B5BCB	1.00	5.74	3.66	5.74
#FFFFFF	5.74	1.00	21.00	1.00
#000000	3.66	21.00	1.00	21.00
##FFFFFF	5.74	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: #4b5bcb;
/* rgb */ color: rgb(75, 91, 203);
/* oklch */ color: oklch(52.1% 0.173 272.8);

Tailwind

colors: {
  custom: {
    50: '#8a89dc',
    500: '#4b5bcb',
    950: '#000000',
  },
}

SCSS

$custom: #4b5bcb;
$custom-light: #8a89dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4b5bcb",
  "rgb": {
    "r": 75,
    "g": 91,
    "b": 203
  },
  "hsl": {
    "h": 232.5,
    "s": 55.172,
    "l": 54.51
  },
  "oklch": {
    "l": 0.52148,
    "c": 0.17312,
    "h": 272.8
  },
  "luminance": 0.1329
}

Semantic roles & 50–950 ramp

primary

#4B5BCB

secondary

#D4CD9E

accent

#CC49DF

background

#F9F8FD

surface

#F1F0FB

border

#CBCBD4

text

#0D0B15

muted

#7E7C83

Preview Lab

Preview with #4B5BCB

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

Preview Lab → · Contrast checker → · Palette generator →