#3B4FC5#3B4FC5

#3B4FC5 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.5% C 0.184 H 270.6°. Best body text is #FFFFFF at 6.75:1 contrast (WCAG AA passes).

Color values

HEX	#3B4FC5
RGB	rgb(59, 79, 197)
HSL	hsl(231, 54%, 50%)
HSV	hsv(231, 70%, 77%)
CMYK	cmyk(70.1%, 59.9%, 0%, 22.7%)
CIE-LAB	lab(38.81, 31.96, -63.88)
CIE-LCH	lch(38.81, 71.43, 296.58°)
OKLab	oklab(48.5% 0.0018 -0.1842)
OKLCH	oklch(48.5% 0.184 270.6)
XYZ	xyz(14.6742, 10.5515, 54.0758)
Luminance	0.1055 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B4FC5 #C5B13B

analogous

#3B94C5 #3B4FC5 #6C3BC5

triadic

#3B4FC5 #C53B4F #4FC53B

tetradic

#3B4FC5 #C53B94 #C5B13B #3BC56C

square

#3B4FC5 #C53B94 #C5B13B #3BC56C

split-complementary

#3B4FC5 #C56C3B #94C53B

monochromatic

#1F2967 #2C3C96 #3B4FC5 #6A79D3 #99A4E1

Accessibility & contrast

On white

6.75

#3B4FC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.11

#3B4FC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B4FC5

6.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B4FC5	#FFFFFF	#000000	##FFFFFF
##3B4FC5	1.00	6.75	3.11	6.75
#FFFFFF	6.75	1.00	21.00	1.00
#000000	3.11	21.00	1.00	21.00
##FFFFFF	6.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062C9

Deuteranopia (green-blind)

#0055C3

Tritanopia (blue-blind)

#006D82

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3b4fc5;
/* rgb */ color: rgb(59, 79, 197);
/* oklch */ color: oklch(48.5% 0.184 270.6);

Tailwind

colors: {
  custom: {
    50: '#8380d7',
    500: '#3b4fc5',
    950: '#000000',
  },
}

SCSS

$custom: #3b4fc5;
$custom-light: #8380d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3b4fc5",
  "rgb": {
    "r": 59,
    "g": 79,
    "b": 197
  },
  "hsl": {
    "h": 231.304,
    "s": 54.331,
    "l": 50.196
  },
  "oklch": {
    "l": 0.48501,
    "c": 0.18426,
    "h": 270.6
  },
  "luminance": 0.10553
}

Semantic roles & 50–950 ramp

primary

#3B4FC5

secondary

#CDC48F

accent

#C84ADE

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3B4FC5

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

Preview Lab → · Contrast checker → · Palette generator →