#3F5EBF#3F5EBF

#3F5EBF is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.2% C 0.156 H 267.3°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#3F5EBF
RGB	rgb(63, 94, 191)
HSL	hsl(225, 50%, 50%)
HSV	hsv(225, 67%, 75%)
CMYK	cmyk(67%, 50.8%, 0%, 25.1%)
CIE-LAB	lab(42.49, 20.77, -54.41)
CIE-LCH	lch(42.49, 58.24, 290.89°)
OKLab	oklab(51.18% -0.0073 -0.1561)
OKLCH	oklch(51.18% 0.156 267.3)
XYZ	xyz(15.4533, 12.8223, 50.9407)
Luminance	0.1282 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5EBF #BFA03F

analogous

#3F9EBF #3F5EBF #603FBF

triadic

#3F5EBF #BF3F5E #5EBF3F

tetradic

#3F5EBF #BF3F9E #BFA03F #3FBF60

square

#3F5EBF #BF3F9E #BFA03F #3FBF60

split-complementary

#3F5EBF #BF603F #9EBF3F

monochromatic

#213163 #304791 #3F5EBF #6D84CF #9BABDE

Accessibility & contrast

On white

5.89

#3F5EBF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#3F5EBF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5EBF

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5EBF	#FFFFFF	#000000	##FFFFFF
##3F5EBF	1.00	5.89	3.56	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#256AC2

Deuteranopia (green-blind)

#005FBD

Tritanopia (blue-blind)

#007585

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3f5ebf;
/* rgb */ color: rgb(63, 94, 191);
/* oklch */ color: oklch(51.2% 0.156 267.3);

Tailwind

colors: {
  custom: {
    50: '#828bd3',
    500: '#3f5ebf',
    950: '#000000',
  },
}

SCSS

$custom: #3f5ebf;
$custom-light: #828bd3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5ebf",
  "rgb": {
    "r": 63,
    "g": 94,
    "b": 191
  },
  "hsl": {
    "h": 225.469,
    "s": 50.394,
    "l": 49.804
  },
  "oklch": {
    "l": 0.5118,
    "c": 0.1563,
    "h": 267.3
  },
  "luminance": 0.12824
}

Semantic roles & 50–950 ramp

primary

#3F5EBF

secondary

#CABC90

accent

#B84EDA

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3F5EBF

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

Preview Lab → · Contrast checker → · Palette generator →