#4339B7#4339B7

#4339B7 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 44.0% C 0.190 H 278.7°. Best body text is #FFFFFF at 8.37:1 contrast (WCAG AA passes).

Color values

HEX	#4339B7
RGB	rgb(67, 57, 183)
HSL	hsl(245, 53%, 47%)
HSV	hsv(245, 69%, 72%)
CMYK	cmyk(63.4%, 68.9%, 0%, 28.2%)
CIE-LAB	lab(33.00, 41.85, -65.15)
CIE-LCH	lch(33.00, 77.43, 302.72°)
OKLab	oklab(44.02% 0.0288 -0.1879)
OKLCH	oklch(44.02% 0.19 278.7)
XYZ	xyz(12.3224, 7.5375, 45.5961)
Luminance	0.0754 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.76

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4339B7 #ADB739

analogous

#396EB7 #4339B7 #8239B7

triadic

#4339B7 #B74339 #39B743

tetradic

#4339B7 #B7396E #ADB739 #39B782

square

#4339B7 #B7396E #ADB739 #39B782

split-complementary

#4339B7 #B78239 #6EB739

monochromatic

#211C5A #322A88 #4339B7 #6860CD #958EDC

Accessibility & contrast

On white

8.37

#4339B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#4339B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4339B7

8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4339B7	#FFFFFF	#000000	##FFFFFF
##4339B7	1.00	8.37	2.51	8.37
#FFFFFF	8.37	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053BB

Deuteranopia (green-blind)

#0048B5

Tritanopia (blue-blind)

#005B73

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #4339b7;
/* rgb */ color: rgb(67, 57, 183);
/* oklch */ color: oklch(44.0% 0.190 278.7);

Tailwind

colors: {
  custom: {
    50: '#8571ce',
    500: '#4339b7',
    950: '#000000',
  },
}

SCSS

$custom: #4339b7;
$custom-light: #8571ce;
$custom-dark: #000000;

JSON

{
  "hex": "#4339b7",
  "rgb": {
    "r": 67,
    "g": 57,
    "b": 183
  },
  "hsl": {
    "h": 244.762,
    "s": 52.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.44018,
    "c": 0.19008,
    "h": 278.7
  },
  "luminance": 0.07538
}

Semantic roles & 50–950 ramp

primary

#4339B7

secondary

#C1C785

accent

#DC4CD0

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #4339B7

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

Preview Lab → · Contrast checker → · Palette generator →