#4B5BB9#4B5BB9

#4B5BB9 is a mid, vivid blue. Relative luminance 0.125; OKLCH L 50.8% C 0.148 H 272.8°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#4B5BB9
RGB	rgb(75, 91, 185)
HSL	hsl(231, 44%, 51%)
HSV	hsv(231, 59%, 73%)
CMYK	cmyk(59.5%, 50.8%, 0%, 27.5%)
CIE-LAB	lab(41.97, 22.70, -51.73)
CIE-LCH	lch(41.97, 56.49, 293.69°)
OKLab	oklab(50.83% 0.0072 -0.148)
OKLCH	oklch(50.83% 0.148 272.8)
XYZ	xyz(15.3968, 12.4796, 47.4870)
Luminance	0.1248 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B5BB9 #B9A94B

analogous

#4B92B9 #4B5BB9 #724BB9

triadic

#4B5BB9 #B94B5B #5BB94B

tetradic

#4B5BB9 #B94B92 #B9A94B #4BB972

square

#4B5BB9 #B94B92 #B9A94B #4BB972

split-complementary

#4B5BB9 #B9724B #92B94B

monochromatic

#272F63 #38448F #4B5BB9 #7783CA #A3ABDB

Accessibility & contrast

On white

6.01

#4B5BB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#4B5BB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B5BB9

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B5BB9	#FFFFFF	#000000	##FFFFFF
##4B5BB9	1.00	6.01	3.50	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2868BC

Deuteranopia (green-blind)

#105EB7

Tritanopia (blue-blind)

#007081

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4b5bb9;
/* rgb */ color: rgb(75, 91, 185);
/* oklch */ color: oklch(50.8% 0.148 272.8);

Tailwind

colors: {
  custom: {
    50: '#8789cf',
    500: '#4b5bb9',
    950: '#000000',
  },
}

SCSS

$custom: #4b5bb9;
$custom-light: #8789cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4b5bb9",
  "rgb": {
    "r": 75,
    "g": 91,
    "b": 185
  },
  "hsl": {
    "h": 231.273,
    "s": 44,
    "l": 50.98
  },
  "oklch": {
    "l": 0.50835,
    "c": 0.14817,
    "h": 272.8
  },
  "luminance": 0.12481
}

Semantic roles & 50–950 ramp

primary

#4B5BB9

secondary

#C8C198

accent

#C154D4

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #4B5BB9

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

Preview Lab → · Contrast checker → · Palette generator →