#4F59DB#4F59DB

#4F59DB is a mid, vivid blue. Relative luminance 0.139; OKLCH L 53.3% C 0.196 H 274.3°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#4F59DB
RGB	rgb(79, 89, 219)
HSL	hsl(236, 66%, 58%)
HSV	hsv(236, 64%, 86%)
CMYK	cmyk(63.9%, 59.4%, 0%, 14.1%)
CIE-LAB	lab(44.12, 36.16, -67.85)
CIE-LCH	lch(44.12, 76.89, 298.06°)
OKLab	oklab(53.27% 0.0146 -0.1954)
OKLCH	oklch(53.27% 0.196 274.3)
XYZ	xyz(19.5788, 13.9198, 68.6591)
Luminance	0.1392 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F59DB #DBD14F

analogous

#4F9FDB #4F59DB #8B4FDB

triadic

#4F59DB #DB4F59 #59DB4F

tetradic

#4F59DB #DB4F9F #DBD14F #4FDB8B

square

#4F59DB #DB4F9F #DBD14F #4FDB8B

split-complementary

#4F59DB #DB8B4F #9FDB4F

monochromatic

#1E2692 #2833C5 #4F59DB #8289E5 #B5B9F0

Accessibility & contrast

On white

5.55

#4F59DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#4F59DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F59DB

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F59DB	#FFFFFF	#000000	##FFFFFF
##4F59DB	1.00	5.55	3.78	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FDF

Deuteranopia (green-blind)

#0062D8

Tritanopia (blue-blind)

#007991

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #4f59db;
/* rgb */ color: rgb(79, 89, 219);
/* oklch */ color: oklch(53.3% 0.196 274.3);

Tailwind

colors: {
  custom: {
    50: '#8f88e7',
    500: '#4f59db',
    950: '#000000',
  },
}

SCSS

$custom: #4f59db;
$custom-light: #8f88e7;
$custom-dark: #000000;

JSON

{
  "hex": "#4f59db",
  "rgb": {
    "r": 79,
    "g": 89,
    "b": 219
  },
  "hsl": {
    "h": 235.714,
    "s": 66.038,
    "l": 58.431
  },
  "oklch": {
    "l": 0.53268,
    "c": 0.19591,
    "h": 274.3
  },
  "luminance": 0.13921
}

Semantic roles & 50–950 ramp

primary

#4F59DB

secondary

#DFDBA7

accent

#DD3FE9

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0B16

muted

#7E7C84

Preview Lab

Preview with #4F59DB

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

Preview Lab → · Contrast checker → · Palette generator →