#3F5DBE#3F5DBE

#3F5DBE is a mid, vivid blue. Relative luminance 0.126; OKLCH L 50.9% C 0.156 H 267.6°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#3F5DBE
RGB	rgb(63, 93, 190)
HSL	hsl(226, 50%, 50%)
HSV	hsv(226, 67%, 75%)
CMYK	cmyk(66.8%, 51.1%, 0%, 25.5%)
CIE-LAB	lab(42.16, 21.05, -54.37)
CIE-LCH	lch(42.16, 58.30, 291.16°)
OKLab	oklab(50.9% -0.0065 -0.156)
OKLCH	oklch(50.9% 0.156 267.6)
XYZ	xyz(15.2553, 12.6017, 50.3336)
Luminance	0.1260 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5DBE #BEA03F

analogous

#3F9DBE #3F5DBE #613FBE

triadic

#3F5DBE #BE3F5D #5DBE3F

tetradic

#3F5DBE #BE3F9D #BEA03F #3FBE61

square

#3F5DBE #BE3F9D #BEA03F #3FBE61

split-complementary

#3F5DBE #BE613F #9DBE3F

monochromatic

#213062 #304790 #3F5DBE #6C83CE #9AAADD

Accessibility & contrast

On white

5.96

#3F5DBE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#3F5DBE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5DBE

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5DBE	#FFFFFF	#000000	##FFFFFF
##3F5DBE	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#246AC1

Deuteranopia (green-blind)

#005EBC

Tritanopia (blue-blind)

#007484

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3f5dbe;
/* rgb */ color: rgb(63, 93, 190);
/* oklch */ color: oklch(50.9% 0.156 267.6);

Tailwind

colors: {
  custom: {
    50: '#828ad2',
    500: '#3f5dbe',
    950: '#000000',
  },
}

SCSS

$custom: #3f5dbe;
$custom-light: #828ad2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5dbe",
  "rgb": {
    "r": 63,
    "g": 93,
    "b": 190
  },
  "hsl": {
    "h": 225.827,
    "s": 50.198,
    "l": 49.608
  },
  "oklch": {
    "l": 0.50903,
    "c": 0.15616,
    "h": 267.6
  },
  "luminance": 0.12603
}

Semantic roles & 50–950 ramp

primary

#3F5DBE

secondary

#C9BC8F

accent

#B94EDA

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3F5DBE

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

Preview Lab → · Contrast checker → · Palette generator →