#3F4BD9#3F4BD9

#3F4BD9 is a mid, highly saturated blue. Relative luminance 0.111; OKLCH L 49.8% C 0.214 H 272.1°. Best body text is #FFFFFF at 6.52:1 contrast (WCAG AA passes).

Color values

HEX	#3F4BD9
RGB	rgb(63, 75, 217)
HSL	hsl(235, 67%, 55%)
HSV	hsv(235, 71%, 85%)
CMYK	cmyk(71%, 65.4%, 0%, 14.9%)
CIE-LAB	lab(39.74, 41.91, -73.90)
CIE-LCH	lch(39.74, 84.96, 299.56°)
OKLab	oklab(49.76% 0.0078 -0.2136)
OKLCH	oklch(49.76% 0.214 272.1)
XYZ	xyz(17.0861, 11.0970, 66.8737)
Luminance	0.1110 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.49

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F4BD9 #D9CD3F

analogous

#3F98D9 #3F4BD9 #803FD9

triadic

#3F4BD9 #D93F4B #4BD93F

tetradic

#3F4BD9 #D93F98 #D9CD3F #3FD980

square

#3F4BD9 #D93F98 #D9CD3F #3FD980

split-complementary

#3F4BD9 #D9803F #98D93F

monochromatic

#1A2284 #2430B7 #3F4BD9 #727BE3 #A5ABED

Accessibility & contrast

On white

6.52

#3F4BD9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.22

#3F4BD9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F4BD9

6.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F4BD9	#FFFFFF	#000000	##FFFFFF
##3F4BD9	1.00	6.52	3.22	6.52
#FFFFFF	6.52	1.00	21.00	1.00
#000000	3.22	21.00	1.00	21.00
##FFFFFF	6.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0065DD

Deuteranopia (green-blind)

#0056D6

Tritanopia (blue-blind)

#00718B

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #3f4bd9;
/* rgb */ color: rgb(63, 75, 217);
/* oklch */ color: oklch(49.8% 0.214 272.1);

Tailwind

colors: {
  custom: {
    50: '#897de6',
    500: '#3f4bd9',
    950: '#000000',
  },
}

SCSS

$custom: #3f4bd9;
$custom-light: #897de6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f4bd9",
  "rgb": {
    "r": 63,
    "g": 75,
    "b": 217
  },
  "hsl": {
    "h": 235.325,
    "s": 66.957,
    "l": 54.902
  },
  "oklch": {
    "l": 0.49756,
    "c": 0.21371,
    "h": 272.1
  },
  "luminance": 0.11099
}

Semantic roles & 50–950 ramp

primary

#3F4BD9

secondary

#DAD59A

accent

#DC3EEA

background

#F9F7FE

surface

#F1EEFC

border

#CBC9D5

text

#0D0A16

muted

#7E7C84

Preview Lab

Preview with #3F4BD9

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

Preview Lab → · Contrast checker → · Palette generator →