#4340BF#4340BF

#4340BF is a mid, vivid blue. Relative luminance 0.086; OKLCH L 45.9% C 0.192 H 276.7°. Best body text is #FFFFFF at 7.71:1 contrast (WCAG AA passes).

Color values

HEX	#4340BF
RGB	rgb(67, 64, 191)
HSL	hsl(241, 50%, 50%)
HSV	hsv(241, 66%, 75%)
CMYK	cmyk(64.9%, 66.5%, 0%, 25.1%)
CIE-LAB	lab(35.24, 40.32, -66.19)
CIE-LCH	lch(35.24, 77.50, 301.35°)
OKLab	oklab(45.86% 0.0224 -0.1909)
OKLCH	oklch(45.86% 0.192 276.7)
XYZ	xyz(13.5490, 8.6205, 50.2300)
Luminance	0.0862 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.18

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4340BF #BCBF40

analogous

#407DBF #4340BF #8240BF

triadic

#4340BF #BF4340 #40BF43

tetradic

#4340BF #BF407D #BCBF40 #40BF82

square

#4340BF #BF407D #BCBF40 #40BF82

split-complementary

#4340BF #BF8240 #7DBF40

monochromatic

#232163 #333191 #4340BF #706ECE #9D9CDE

Accessibility & contrast

On white

7.71

#4340BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#4340BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4340BF

7.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4340BF	#FFFFFF	#000000	##FFFFFF
##4340BF	1.00	7.71	2.72	7.71
#FFFFFF	7.71	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C3

Deuteranopia (green-blind)

#004DBD

Tritanopia (blue-blind)

#00617A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #4340bf;
/* rgb */ color: rgb(67, 64, 191);
/* oklch */ color: oklch(45.9% 0.192 276.7);

Tailwind

colors: {
  custom: {
    50: '#8675d3',
    500: '#4340bf',
    950: '#000000',
  },
}

SCSS

$custom: #4340bf;
$custom-light: #8675d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4340bf",
  "rgb": {
    "r": 67,
    "g": 64,
    "b": 191
  },
  "hsl": {
    "h": 241.417,
    "s": 49.804,
    "l": 50
  },
  "oklch": {
    "l": 0.45855,
    "c": 0.19224,
    "h": 276.7
  },
  "luminance": 0.08622
}

Semantic roles & 50–950 ramp

primary

#4340BF

secondary

#C9CA91

accent

#D94ED6

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #4340BF

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

Preview Lab → · Contrast checker → · Palette generator →