#3B4FC8#3B4FC8

#3B4FC8 is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.8% C 0.188 H 270.5°. Best body text is #FFFFFF at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#3B4FC8
RGB	rgb(59, 79, 200)
HSL	hsl(231, 56%, 51%)
HSV	hsv(231, 71%, 78%)
CMYK	cmyk(70.5%, 60.5%, 0%, 21.6%)
CIE-LAB	lab(39.05, 33.03, -65.23)
CIE-LCH	lch(39.05, 73.11, 296.86°)
OKLab	oklab(48.75% 0.0018 -0.1882)
OKLCH	oklch(48.75% 0.188 270.5)
XYZ	xyz(15.0214, 10.6904, 55.9042)
Luminance	0.1069 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B4FC8 #C8B43B

analogous

#3B96C8 #3B4FC8 #6D3BC8

triadic

#3B4FC8 #C83B4F #4FC83B

tetradic

#3B4FC8 #C83B96 #C8B43B #3BC86D

square

#3B4FC8 #C83B96 #C8B43B #3BC86D

split-complementary

#3B4FC8 #C86D3B #96C83B

monochromatic

#1E296B #2B3B9A #3B4FC8 #6B7AD5 #9BA5E3

Accessibility & contrast

On white

6.69

#3B4FC8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#3B4FC8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B4FC8

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B4FC8	#FFFFFF	#000000	##FFFFFF
##3B4FC8	1.00	6.69	3.14	6.69
#FFFFFF	6.69	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063CC

Deuteranopia (green-blind)

#0056C6

Tritanopia (blue-blind)

#006E84

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3b4fc8;
/* rgb */ color: rgb(59, 79, 200);
/* oklch */ color: oklch(48.8% 0.188 270.5);

Tailwind

colors: {
  custom: {
    50: '#8380da',
    500: '#3b4fc8',
    950: '#000000',
  },
}

SCSS

$custom: #3b4fc8;
$custom-light: #8380da;
$custom-dark: #000000;

JSON

{
  "hex": "#3b4fc8",
  "rgb": {
    "r": 59,
    "g": 79,
    "b": 200
  },
  "hsl": {
    "h": 231.489,
    "s": 56.175,
    "l": 50.784
  },
  "oklch": {
    "l": 0.48753,
    "c": 0.18824,
    "h": 270.5
  },
  "luminance": 0.10692
}

Semantic roles & 50–950 ramp

primary

#3B4FC8

secondary

#CFC690

accent

#CA48DF

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3B4FC8

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

Preview Lab → · Contrast checker → · Palette generator →