#4F5BB3#4F5BB3

#4F5BB3 is a mid, vivid blue. Relative luminance 0.124; OKLCH L 50.7% C 0.139 H 274.5°. Best body text is #FFFFFF at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#4F5BB3
RGB	rgb(79, 91, 179)
HSL	hsl(233, 40%, 51%)
HSV	hsv(233, 56%, 70%)
CMYK	cmyk(55.9%, 49.2%, 0%, 29.8%)
CIE-LAB	lab(41.84, 21.48, -48.40)
CIE-LCH	lch(41.84, 52.95, 293.93°)
OKLab	oklab(50.68% 0.0109 -0.1381)
OKLCH	oklch(50.68% 0.139 274.5)
XYZ	xyz(15.0996, 12.3981, 44.2365)
Luminance	0.1240 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F5BB3 #B3A74F

analogous

#4F8DB3 #4F5BB3 #754FB3

triadic

#4F5BB3 #B34F5B #5BB34F

tetradic

#4F5BB3 #B34F8D #B3A74F #4FB375

square

#4F5BB3 #B34F8D #B3A74F #4FB375

split-complementary

#4F5BB3 #B3754F #8DB34F

monochromatic

#292F5F #3B4589 #4F5BB3 #7A83C5 #A4ABD8

Accessibility & contrast

On white

6.03

#4F5BB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#4F5BB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F5BB3

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F5BB3	#FFFFFF	#000000	##FFFFFF
##4F5BB3	1.00	6.03	3.48	6.03
#FFFFFF	6.03	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3067B6

Deuteranopia (green-blind)

#225FB1

Tritanopia (blue-blind)

#196F7E

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4f5bb3;
/* rgb */ color: rgb(79, 91, 179);
/* oklch */ color: oklch(50.7% 0.139 274.5);

Tailwind

colors: {
  custom: {
    50: '#8889ca',
    500: '#4f5bb3',
    950: '#000000',
  },
}

SCSS

$custom: #4f5bb3;
$custom-light: #8889ca;
$custom-dark: #000000;

JSON

{
  "hex": "#4f5bb3",
  "rgb": {
    "r": 79,
    "g": 91,
    "b": 179
  },
  "hsl": {
    "h": 232.8,
    "s": 39.683,
    "l": 50.588
  },
  "oklch": {
    "l": 0.50683,
    "c": 0.13856,
    "h": 274.5
  },
  "luminance": 0.12399
}

Semantic roles & 50–950 ramp

primary

#4F5BB3

secondary

#C5C099

accent

#C158D0

background

#F8F8FC

surface

#F0F0F8

border

#CBCBD1

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #4F5BB3

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

Preview Lab → · Contrast checker → · Palette generator →