#4F55E9#4F55E9

#4F55E9 is a mid, highly saturated blue. Relative luminance 0.140; OKLCH L 53.7% C 0.219 H 274.5°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#4F55E9
RGB	rgb(79, 85, 233)
HSL	hsl(238, 78%, 61%)
HSV	hsv(238, 66%, 91%)
CMYK	cmyk(66.1%, 63.5%, 0%, 8.6%)
CIE-LAB	lab(44.29, 43.24, -75.51)
CIE-LCH	lch(44.29, 87.02, 299.80°)
OKLab	oklab(53.74% 0.0171 -0.2179)
OKLCH	oklch(53.74% 0.219 274.5)
XYZ	xyz(21.1761, 14.0406, 78.6691)
Luminance	0.1404 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4F55E9 #E9E34F

analogous

#4FA2E9 #4F55E9 #964FE9

triadic

#4F55E9 #E94F55 #55E94F

tetradic

#4F55E9 #E94FA2 #E9E34F #4FE996

square

#4F55E9 #E94FA2 #E9E34F #4FE996

split-complementary

#4F55E9 #E9964F #A2E94F

monochromatic

#151BA9 #1C23DF #4F55E9 #858AF0 #BCBEF7

Accessibility & contrast

On white

5.51

#4F55E9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#4F55E9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4F55E9

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4F55E9	#FFFFFF	#000000	##FFFFFF
##4F55E9	1.00	5.51	3.81	5.51
#FFFFFF	5.51	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0070EE

Deuteranopia (green-blind)

#0062E6

Tritanopia (blue-blind)

#007B97

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #4f55e9;
/* rgb */ color: rgb(79, 85, 233);
/* oklch */ color: oklch(53.7% 0.219 274.5);

Tailwind

colors: {
  custom: {
    50: '#9285f1',
    500: '#4f55e9',
    950: '#000000',
  },
}

SCSS

$custom: #4f55e9;
$custom-light: #9285f1;
$custom-dark: #000000;

JSON

{
  "hex": "#4f55e9",
  "rgb": {
    "r": 79,
    "g": 85,
    "b": 233
  },
  "hsl": {
    "h": 237.662,
    "s": 77.778,
    "l": 61.176
  },
  "oklch": {
    "l": 0.53739,
    "c": 0.21855,
    "h": 274.5
  },
  "luminance": 0.14042
}

Semantic roles & 50–950 ramp

primary

#4F55E9

secondary

#E7E5AD

accent

#D20BDA

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0B17

muted

#7E7C85

Preview Lab

Preview with #4F55E9

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

Preview Lab → · Contrast checker → · Palette generator →