#3F5AC0#3F5AC0

#3F5AC0 is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.4% C 0.163 H 268.7°. Best body text is #FFFFFF at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#3F5AC0
RGB	rgb(63, 90, 192)
HSL	hsl(227, 51%, 50%)
HSV	hsv(227, 67%, 75%)
CMYK	cmyk(67.2%, 53.1%, 0%, 24.7%)
CIE-LAB	lab(41.49, 23.70, -56.61)
CIE-LCH	lch(41.49, 61.37, 292.71°)
OKLab	oklab(50.44% -0.0036 -0.1627)
OKLCH	oklch(50.44% 0.163 268.7)
XYZ	xyz(15.2172, 12.1734, 51.4067)
Luminance	0.1217 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5AC0 #C0A53F

analogous

#3F9AC0 #3F5AC0 #653FC0

triadic

#3F5AC0 #C03F5A #5AC03F

tetradic

#3F5AC0 #C03F9A #C0A53F #3FC065

square

#3F5AC0 #C03F9A #C0A53F #3FC065

split-complementary

#3F5AC0 #C0653F #9AC03F

monochromatic

#212F64 #304492 #3F5AC0 #6D82CF #9BA9DE

Accessibility & contrast

On white

6.11

#3F5AC0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#3F5AC0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5AC0

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5AC0	#FFFFFF	#000000	##FFFFFF
##3F5AC0	1.00	6.11	3.44	6.11
#FFFFFF	6.11	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1468C4

Deuteranopia (green-blind)

#005CBE

Tritanopia (blue-blind)

#007284

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3f5ac0;
/* rgb */ color: rgb(63, 90, 192);
/* oklch */ color: oklch(50.4% 0.163 268.7);

Tailwind

colors: {
  custom: {
    50: '#8388d4',
    500: '#3f5ac0',
    950: '#000000',
  },
}

SCSS

$custom: #3f5ac0;
$custom-light: #8388d4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5ac0",
  "rgb": {
    "r": 63,
    "g": 90,
    "b": 192
  },
  "hsl": {
    "h": 227.442,
    "s": 50.588,
    "l": 50
  },
  "oklch": {
    "l": 0.50442,
    "c": 0.16271,
    "h": 268.7
  },
  "luminance": 0.12175
}

Semantic roles & 50–950 ramp

primary

#3F5AC0

secondary

#CABE91

accent

#BD4EDA

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3F5AC0

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

Preview Lab → · Contrast checker → · Palette generator →