#3F30EA#3F30EA

#3F30EA is a mid, highly saturated blue. Relative luminance 0.091; OKLCH L 47.7% C 0.259 H 273.9°. Best body text is #FFFFFF at 7.44:1 contrast (WCAG AA passes).

Color values

HEX	#3F30EA
RGB	rgb(63, 48, 234)
HSL	hsl(245, 82%, 55%)
HSV	hsv(245, 79%, 92%)
CMYK	cmyk(73.1%, 79.5%, 0%, 8.2%)
CIE-LAB	lab(36.19, 61.91, -89.45)
CIE-LCH	lch(36.19, 108.79, 304.69°)
OKLab	oklab(47.73% 0.0178 -0.2587)
OKLCH	oklch(47.73% 0.259 273.9)
XYZ	xyz(17.9532, 9.1093, 78.6381)
Luminance	0.0911 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F30EA #DBEA30

analogous

#307EEA #3F30EA #9C30EA

triadic

#3F30EA #EA3F30 #30EA3F

tetradic

#3F30EA #EA307E #DBEA30 #30EA9C

square

#3F30EA #EA307E #DBEA30 #30EA9C

split-complementary

#3F30EA #EA9C30 #7EEA30

monochromatic

#190F91 #2314C8 #3F30EA #7368F0 #A69FF5

Accessibility & contrast

On white

7.44

#3F30EA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#3F30EA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F30EA

7.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F30EA	#FFFFFF	#000000	##FFFFFF
##3F30EA	1.00	7.44	2.82	7.44
#FFFFFF	7.44	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DEF

Deuteranopia (green-blind)

#004CE7

Tritanopia (blue-blind)

#006A8E

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3f30ea;
/* rgb */ color: rgb(63, 48, 234);
/* oklch */ color: oklch(47.7% 0.259 273.9);

Tailwind

colors: {
  custom: {
    50: '#8e6df2',
    500: '#3f30ea',
    950: '#000000',
  },
}

SCSS

$custom: #3f30ea;
$custom-light: #8e6df2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f30ea",
  "rgb": {
    "r": 63,
    "g": 48,
    "b": 234
  },
  "hsl": {
    "h": 244.839,
    "s": 81.579,
    "l": 55.294
  },
  "oklch": {
    "l": 0.47725,
    "c": 0.25934,
    "h": 273.9
  },
  "luminance": 0.09111
}

Semantic roles & 50–950 ramp

primary

#3F30EA

secondary

#DCE294

accent

#F830E8

background

#F9F6FF

surface

#F2ECFE

border

#CCC7D6

text

#0F0717

muted

#7E7A85

Preview Lab

Preview with #3F30EA

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

Preview Lab → · Contrast checker → · Palette generator →