#4B5BB5#4B5BB5

#4B5BB5 is a mid, vivid blue. Relative luminance 0.123; OKLCH L 50.6% C 0.142 H 272.7°. Best body text is #FFFFFF at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#4B5BB5
RGB	rgb(75, 91, 181)
HSL	hsl(231, 42%, 50%)
HSV	hsv(231, 59%, 71%)
CMYK	cmyk(58.6%, 49.7%, 0%, 29%)
CIE-LAB	lab(41.71, 21.34, -49.80)
CIE-LCH	lch(41.71, 54.18, 293.19°)
OKLab	oklab(50.56% 0.0068 -0.1423)
OKLCH	oklch(50.56% 0.143 272.7)
XYZ	xyz(14.9805, 12.3131, 45.2943)
Luminance	0.1231 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B5BB5 #B5A54B

analogous

#4B90B5 #4B5BB5 #704BB5

triadic

#4B5BB5 #B54B5B #5BB54B

tetradic

#4B5BB5 #B54B90 #B5A54B #4BB570

square

#4B5BB5 #B54B90 #B5A54B #4BB570

split-complementary

#4B5BB5 #B5704B #90B54B

monochromatic

#272F5F #39458A #4B5BB5 #7683C7 #A2AAD9

Accessibility & contrast

On white

6.06

#4B5BB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#4B5BB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B5BB5

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B5BB5	#FFFFFF	#000000	##FFFFFF
##4B5BB5	1.00	6.06	3.46	6.06
#FFFFFF	6.06	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D67B8

Deuteranopia (green-blind)

#1A5EB3

Tritanopia (blue-blind)

#006F7F

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #4b5bb5;
/* rgb */ color: rgb(75, 91, 181);
/* oklch */ color: oklch(50.6% 0.142 272.7);

Tailwind

colors: {
  custom: {
    50: '#8689cc',
    500: '#4b5bb5',
    950: '#000000',
  },
}

SCSS

$custom: #4b5bb5;
$custom-light: #8689cc;
$custom-dark: #000000;

JSON

{
  "hex": "#4b5bb5",
  "rgb": {
    "r": 75,
    "g": 91,
    "b": 181
  },
  "hsl": {
    "h": 230.943,
    "s": 41.732,
    "l": 50.196
  },
  "oklch": {
    "l": 0.50556,
    "c": 0.1425,
    "h": 272.7
  },
  "luminance": 0.12314
}

Semantic roles & 50–950 ramp

primary

#4B5BB5

secondary

#C6BE96

accent

#BF56D2

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #4B5BB5

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

Preview Lab → · Contrast checker → · Palette generator →