#4F5BB5#4F5BB5

#4F5BB5 is a mid, vivid blue. Relative luminance 0.125; OKLCH L 50.8% C 0.141 H 274.5°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#4F5BB5
RGB	rgb(79, 91, 181)
HSL	hsl(233, 41%, 51%)
HSV	hsv(233, 56%, 71%)
CMYK	cmyk(56.4%, 49.7%, 0%, 29%)
CIE-LAB	lab(41.97, 22.15, -49.37)
CIE-LCH	lch(41.97, 54.11, 294.16°)
OKLab	oklab(50.82% 0.0111 -0.141)
OKLCH	oklch(50.82% 0.141 274.5)
XYZ	xyz(15.3033, 12.4795, 45.3095)
Luminance	0.1248 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F5BB5 #B5A94F

analogous

#4F8EB5 #4F5BB5 #764FB5

triadic

#4F5BB5 #B54F5B #5BB54F

tetradic

#4F5BB5 #B54F8E #B5A94F #4FB576

square

#4F5BB5 #B54F8E #B5A94F #4FB576

split-complementary

#4F5BB5 #B5764F #8EB54F

monochromatic

#292F61 #3B448C #4F5BB5 #7A83C7 #A5ABD9

Accessibility & contrast

On white

6.01

#4F5BB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#4F5BB5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F5BB5

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F5BB5	#FFFFFF	#000000	##FFFFFF
##4F5BB5	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)

#2E68B8

Deuteranopia (green-blind)

#1F5FB3

Tritanopia (blue-blind)

#156F7F

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #4f5bb5;
/* rgb */ color: rgb(79, 91, 181);
/* oklch */ color: oklch(50.8% 0.141 274.5);

Tailwind

colors: {
  custom: {
    50: '#8889cc',
    500: '#4f5bb5',
    950: '#000000',
  },
}

SCSS

$custom: #4f5bb5;
$custom-light: #8889cc;
$custom-dark: #000000;

JSON

{
  "hex": "#4f5bb5",
  "rgb": {
    "r": 79,
    "g": 91,
    "b": 181
  },
  "hsl": {
    "h": 232.941,
    "s": 40.8,
    "l": 50.98
  },
  "oklch": {
    "l": 0.5082,
    "c": 0.14142,
    "h": 274.5
  },
  "luminance": 0.12481
}

Semantic roles & 50–950 ramp

primary

#4F5BB5

secondary

#C6C199

accent

#C257D1

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0B13

muted

#7D7C82

Preview Lab

Preview with #4F5BB5

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

Preview Lab → · Contrast checker → · Palette generator →