#3F55EA#3F55EA

#3F55EA is a mid, highly saturated blue. Relative luminance 0.135; OKLCH L 52.9% C 0.224 H 270.1°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#3F55EA
RGB	rgb(63, 85, 234)
HSL	hsl(232, 80%, 58%)
HSV	hsv(232, 73%, 92%)
CMYK	cmyk(73.1%, 63.7%, 0%, 8.2%)
CIE-LAB	lab(43.50, 41.66, -77.42)
CIE-LCH	lch(43.50, 87.92, 298.29°)
OKLab	oklab(52.95% 0.0005 -0.2238)
OKLCH	oklch(52.95% 0.224 270.1)
XYZ	xyz(20.1446, 13.4921, 79.3685)
Luminance	0.1349 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F55EA #EAD43F

analogous

#3FAAEA #3F55EA #7E3FEA

triadic

#3F55EA #EA3F55 #55EA3F

tetradic

#3F55EA #EA3FAA #EAD43F #3FEA7E

square

#3F55EA #EA3FAA #EAD43F #3FEA7E

split-complementary

#3F55EA #EA7E3F #AAEA3F

monochromatic

#11239D #1730D5 #3F55EA #7686F0 #ADB7F6

Accessibility & contrast

On white

5.68

#3F55EA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#3F55EA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F55EA

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F55EA	#FFFFFF	#000000	##FFFFFF
##3F55EA	1.00	5.68	3.70	5.68
#FFFFFF	5.68	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FEF

Deuteranopia (green-blind)

#005FE7

Tritanopia (blue-blind)

#007C98

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3f55ea;
/* rgb */ color: rgb(63, 85, 234);
/* oklch */ color: oklch(52.9% 0.224 270.1);

Tailwind

colors: {
  custom: {
    50: '#8c85f2',
    500: '#3f55ea',
    950: '#000000',
  },
}

SCSS

$custom: #3f55ea;
$custom-light: #8c85f2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f55ea",
  "rgb": {
    "r": 63,
    "g": 85,
    "b": 234
  },
  "hsl": {
    "h": 232.281,
    "s": 80.282,
    "l": 58.235
  },
  "oklch": {
    "l": 0.52947,
    "c": 0.22382,
    "h": 270.1
  },
  "luminance": 0.13494
}

Semantic roles & 50–950 ramp

primary

#3F55EA

secondary

#E4DCA0

accent

#DD31F7

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0B17

muted

#7E7C85

Preview Lab

Preview with #3F55EA

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

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