#3B4FCB#3B4FCB

#3B4FCB is a mid, vivid blue. Relative luminance 0.108; OKLCH L 49.0% C 0.192 H 270.5°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#3B4FCB
RGB	rgb(59, 79, 203)
HSL	hsl(232, 58%, 51%)
HSV	hsv(232, 71%, 80%)
CMYK	cmyk(70.9%, 61.1%, 0%, 20.4%)
CIE-LAB	lab(39.30, 34.09, -66.57)
CIE-LCH	lch(39.30, 74.79, 297.12°)
OKLab	oklab(49.01% 0.0017 -0.1922)
OKLCH	oklch(49.01% 0.192 270.5)
XYZ	xyz(15.3754, 10.8320, 57.7688)
Luminance	0.1083 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B4FCB #CBB73B

analogous

#3B97CB #3B4FCB #6F3BCB

triadic

#3B4FCB #CB3B4F #4FCB3B

tetradic

#3B4FCB #CB3B97 #CBB73B #3BCB6F

square

#3B4FCB #CB3B97 #CBB73B #3BCB6F

split-complementary

#3B4FCB #CB6F3B #97CB3B

monochromatic

#1D296E #2A3A9F #3B4FCB #6B7AD8 #9CA6E5

Accessibility & contrast

On white

6.63

#3B4FCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#3B4FCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B4FCB

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B4FCB	#FFFFFF	#000000	##FFFFFF
##3B4FCB	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063CF

Deuteranopia (green-blind)

#0056C9

Tritanopia (blue-blind)

#006F85

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3b4fcb;
/* rgb */ color: rgb(59, 79, 203);
/* oklch */ color: oklch(49.0% 0.192 270.5);

Tailwind

colors: {
  custom: {
    50: '#8480dc',
    500: '#3b4fcb',
    950: '#000000',
  },
}

SCSS

$custom: #3b4fcb;
$custom-light: #8480dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3b4fcb",
  "rgb": {
    "r": 59,
    "g": 79,
    "b": 203
  },
  "hsl": {
    "h": 231.667,
    "s": 58.065,
    "l": 51.373
  },
  "oklch": {
    "l": 0.49007,
    "c": 0.19218,
    "h": 270.5
  },
  "luminance": 0.10834
}

Semantic roles & 50–950 ramp

primary

#3B4FCB

secondary

#D1C891

accent

#CC47E1

background

#F8F7FD

surface

#F0EEFB

border

#CBC9D4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3B4FCB

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

Preview Lab → · Contrast checker → · Palette generator →