#4F5FBB#4F5FBB

#4F5FBB is a mid, vivid blue. Relative luminance 0.134; OKLCH L 52.0% C 0.145 H 273.0°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#4F5FBB
RGB	rgb(79, 95, 187)
HSL	hsl(231, 44%, 52%)
HSV	hsv(231, 58%, 73%)
CMYK	cmyk(57.8%, 49.2%, 0%, 26.7%)
CIE-LAB	lab(43.41, 21.62, -50.56)
CIE-LCH	lch(43.41, 54.99, 293.16°)
OKLab	oklab(52.03% 0.0075 -0.1444)
OKLCH	oklch(52.03% 0.145 273)
XYZ	xyz(16.2834, 13.4333, 48.7389)
Luminance	0.1343 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F5FBB #BBAB4F

analogous

#4F95BB #4F5FBB #754FBB

triadic

#4F5FBB #BB4F5F #5FBB4F

tetradic

#4F5FBB #BB4F95 #BBAB4F #4FBB75

square

#4F5FBB #BB4F95 #BBAB4F #4FBB75

split-complementary

#4F5FBB #BB754F #95BB4F

monochromatic

#283168 #394794 #4F5FBB #7B87CC #A7AFDD

Accessibility & contrast

On white

5.70

#4F5FBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#4F5FBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F5FBB

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F5FBB	#FFFFFF	#000000	##FFFFFF
##4F5FBB	1.00	5.70	3.69	5.70
#FFFFFF	5.70	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#316BBE

Deuteranopia (green-blind)

#1F62B9

Tritanopia (blue-blind)

#027484

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #4f5fbb;
/* rgb */ color: rgb(79, 95, 187);
/* oklch */ color: oklch(52.0% 0.145 273.0);

Tailwind

colors: {
  custom: {
    50: '#898cd0',
    500: '#4f5fbb',
    950: '#000000',
  },
}

SCSS

$custom: #4f5fbb;
$custom-light: #898cd0;
$custom-dark: #000000;

JSON

{
  "hex": "#4f5fbb",
  "rgb": {
    "r": 79,
    "g": 95,
    "b": 187
  },
  "hsl": {
    "h": 231.111,
    "s": 44.262,
    "l": 52.157
  },
  "oklch": {
    "l": 0.52032,
    "c": 0.14463,
    "h": 273
  },
  "luminance": 0.13435
}

Semantic roles & 50–950 ramp

primary

#4F5FBB

secondary

#CAC39B

accent

#C154D4

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0C14

muted

#7D7D82

Preview Lab

Preview with #4F5FBB

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

Preview Lab → · Contrast checker → · Palette generator →