#4B579B#4B579B

#4B579B is a mid, moderate blue. Relative luminance 0.107; OKLCH L 48.0% C 0.110 H 274.0°. Best body text is #FFFFFF at 6.70:1 contrast (WCAG AA passes).

Color values

HEX	#4B579B
RGB	rgb(75, 87, 155)
HSL	hsl(231, 35%, 45%)
HSV	hsv(231, 52%, 61%)
CMYK	cmyk(51.6%, 43.9%, 0%, 39.2%)
CIE-LAB	lab(39.03, 15.18, -38.67)
CIE-LCH	lch(39.03, 41.54, 291.43°)
OKLab	oklab(48.01% 0.0077 -0.1097)
OKLCH	oklch(48.01% 0.11 274)
XYZ	xyz(12.2244, 10.6780, 32.4209)
Luminance	0.1068 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4B579B #9B8F4B

analogous

#4B7F9B #4B579B #674B9B

triadic

#4B579B #9B4B57 #579B4B

tetradic

#4B579B #9B4B7F #9B8F4B #4B9B67

square

#4B579B #9B4B7F #9B8F4B #4B9B67

split-complementary

#4B579B #9B674B #7F9B4B

monochromatic

#232949 #374072 #4B579B #6C77B8 #959DCC

Accessibility & contrast

On white

6.70

#4B579B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#4B579B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4B579B

6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4B579B	#FFFFFF	#000000	##FFFFFF
##4B579B	1.00	6.70	3.14	6.70
#FFFFFF	6.70	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B5F9E

Deuteranopia (green-blind)

#335999

Tritanopia (blue-blind)

#296671

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #4b579b;
/* rgb */ color: rgb(75, 87, 155);
/* oklch */ color: oklch(48.0% 0.110 274.0);

Tailwind

colors: {
  custom: {
    50: '#8386b9',
    500: '#4b579b',
    950: '#000000',
  },
}

SCSS

$custom: #4b579b;
$custom-light: #8386b9;
$custom-dark: #000000;

JSON

{
  "hex": "#4b579b",
  "rgb": {
    "r": 75,
    "g": 87,
    "b": 155
  },
  "hsl": {
    "h": 231,
    "s": 34.783,
    "l": 45.098
  },
  "oklch": {
    "l": 0.48008,
    "c": 0.10996,
    "h": 274
  },
  "luminance": 0.10679
}

Semantic roles & 50–950 ramp

primary

#4B579B

secondary

#B8B18A

accent

#BA5DCB

background

#F8F8FB

surface

#EFEFF6

border

#CACAD0

text

#0B0B11

muted

#7C7C80

Preview Lab

Preview with #4B579B

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

Preview Lab → · Contrast checker → · Palette generator →