#4F5BB7#4F5BB7

#4F5BB7 is a mid, vivid blue. Relative luminance 0.126; OKLCH L 51.0% C 0.144 H 274.5°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#4F5BB7
RGB	rgb(79, 91, 183)
HSL	hsl(233, 42%, 51%)
HSV	hsv(233, 57%, 72%)
CMYK	cmyk(56.8%, 50.3%, 0%, 28.2%)
CIE-LAB	lab(42.10, 22.82, -50.34)
CIE-LCH	lch(42.10, 55.27, 294.38°)
OKLab	oklab(50.96% 0.0114 -0.1438)
OKLCH	oklch(50.96% 0.144 274.5)
XYZ	xyz(15.5100, 12.5622, 46.3980)
Luminance	0.1256 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F5BB7 #B7AB4F

analogous

#4F8FB7 #4F5BB7 #774FB7

triadic

#4F5BB7 #B74F5B #5BB74F

tetradic

#4F5BB7 #B74F8F #B7AB4F #4FB777

square

#4F5BB7 #B74F8F #B7AB4F #4FB777

split-complementary

#4F5BB7 #B7774F #8FB74F

monochromatic

#292F63 #3A448F #4F5BB7 #7A83C9 #A6ACDB

Accessibility & contrast

On white

5.98

#4F5BB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#4F5BB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F5BB7

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F5BB7	#FFFFFF	#000000	##FFFFFF
##4F5BB7	1.00	5.98	3.51	5.98
#FFFFFF	5.98	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C68BA

Deuteranopia (green-blind)

#1B5FB5

Tritanopia (blue-blind)

#117080

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4f5bb7;
/* rgb */ color: rgb(79, 91, 183);
/* oklch */ color: oklch(51.0% 0.144 274.5);

Tailwind

colors: {
  custom: {
    50: '#8989cd',
    500: '#4f5bb7',
    950: '#000000',
  },
}

SCSS

$custom: #4f5bb7;
$custom-light: #8989cd;
$custom-dark: #000000;

JSON

{
  "hex": "#4f5bb7",
  "rgb": {
    "r": 79,
    "g": 91,
    "b": 183
  },
  "hsl": {
    "h": 233.077,
    "s": 41.935,
    "l": 51.373
  },
  "oklch": {
    "l": 0.50957,
    "c": 0.14427,
    "h": 274.5
  },
  "luminance": 0.12563
}

Semantic roles & 50–950 ramp

primary

#4F5BB7

secondary

#C8C39A

accent

#C356D2

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #4F5BB7

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

Preview Lab → · Contrast checker → · Palette generator →