#3439B2#3439B2

#3439B2 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.5% C 0.187 H 273.3°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#3439B2
RGB	rgb(52, 57, 178)
HSL	hsl(238, 55%, 45%)
HSV	hsv(238, 71%, 70%)
CMYK	cmyk(70.8%, 68%, 0%, 30.2%)
CIE-LAB	lab(31.51, 38.24, -64.67)
CIE-LCH	lch(31.51, 75.13, 300.60°)
OKLab	oklab(42.53% 0.0109 -0.1869)
OKLCH	oklch(42.53% 0.187 273.3)
XYZ	xyz(10.9125, 6.8696, 42.8617)
Luminance	0.0687 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3439B2 #B2AD34

analogous

#3478B2 #3439B2 #6E34B2

triadic

#3439B2 #B23439 #39B234

tetradic

#3439B2 #B23478 #B2AD34 #34B26E

square

#3439B2 #B23478 #B2AD34 #34B26E

split-complementary

#3439B2 #B26E34 #78B234

monochromatic

#181B53 #262A83 #3439B2 #565ACE #8588DB

Accessibility & contrast

On white

8.85

#3439B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#3439B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3439B2

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3439B2	#FFFFFF	#000000	##FFFFFF
##3439B2	1.00	8.85	2.37	8.85
#FFFFFF	8.85	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B6

Deuteranopia (green-blind)

#0044B0

Tritanopia (blue-blind)

#005A71

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3439b2;
/* rgb */ color: rgb(52, 57, 178);
/* oklch */ color: oklch(42.5% 0.187 273.3);

Tailwind

colors: {
  custom: {
    50: '#7d70ca',
    500: '#3439b2',
    950: '#000000',
  },
}

SCSS

$custom: #3439b2;
$custom-light: #7d70ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3439b2",
  "rgb": {
    "r": 52,
    "g": 57,
    "b": 178
  },
  "hsl": {
    "h": 237.619,
    "s": 54.783,
    "l": 45.098
  },
  "oklch": {
    "l": 0.42532,
    "c": 0.18721,
    "h": 273.3
  },
  "luminance": 0.06871
}

Semantic roles & 50–950 ramp

primary

#3439B2

secondary

#C5C27D

accent

#D84ADE

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3439B2

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

Preview Lab → · Contrast checker → · Palette generator →