#4F539B#4F539B

#4F539B is a mid, moderate blue. Relative luminance 0.102; OKLCH L 47.5% C 0.115 H 278.7°. Best body text is #FFFFFF at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#4F539B
RGB	rgb(79, 83, 155)
HSL	hsl(237, 32%, 46%)
HSV	hsv(237, 49%, 61%)
CMYK	cmyk(49%, 46.5%, 0%, 39.2%)
CIE-LAB	lab(38.23, 18.71, -39.94)
CIE-LCH	lch(38.23, 44.10, 295.11°)
OKLab	oklab(47.47% 0.0173 -0.1133)
OKLCH	oklch(47.47% 0.115 278.7)
XYZ	xyz(12.2323, 10.2147, 32.3311)
Luminance	0.1022 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F539B #9B974F

analogous

#4F799B #4F539B #714F9B

triadic

#4F539B #9B4F53 #539B4F

tetradic

#4F539B #9B4F79 #9B974F #4F9B71

square

#4F539B #9B4F79 #9B974F #4F9B71

split-complementary

#4F539B #9B714F #799B4F

monochromatic

#26284A #3A3D72 #4F539B #7174B6 #999CCB

Accessibility & contrast

On white

6.90

#4F539B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#4F539B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F539B

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F539B	#FFFFFF	#000000	##FFFFFF
##4F539B	1.00	6.90	3.04	6.90
#FFFFFF	6.90	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#355D9E

Deuteranopia (green-blind)

#2F5799

Tritanopia (blue-blind)

#33626F

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #4f539b;
/* rgb */ color: rgb(79, 83, 155);
/* oklch */ color: oklch(47.5% 0.115 278.7);

Tailwind

colors: {
  custom: {
    50: '#8583b9',
    500: '#4f539b',
    950: '#000000',
  },
}

SCSS

$custom: #4f539b;
$custom-light: #8583b9;
$custom-dark: #000000;

JSON

{
  "hex": "#4f539b",
  "rgb": {
    "r": 79,
    "g": 83,
    "b": 155
  },
  "hsl": {
    "h": 236.842,
    "s": 32.479,
    "l": 45.882
  },
  "oklch": {
    "l": 0.47467,
    "c": 0.11466,
    "h": 278.7
  },
  "luminance": 0.10215
}

Semantic roles & 50–950 ramp

primary

#4F539B

secondary

#B8B68E

accent

#C35FC9

background

#F8F8FB

surface

#F0EFF6

border

#CBCAD0

text

#0B0A11

muted

#7C7C80

Preview Lab

Preview with #4F539B

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

Preview Lab → · Contrast checker → · Palette generator →