#334EB9#334EB9

#334EB9 is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.9% C 0.172 H 268.2°. Best body text is #FFFFFF at 7.16:1 contrast (WCAG AA passes).

Color values

HEX	#334EB9
RGB	rgb(51, 78, 185)
HSL	hsl(228, 57%, 46%)
HSV	hsv(228, 72%, 73%)
CMYK	cmyk(72.4%, 57.8%, 0%, 27.5%)
CIE-LAB	lab(37.21, 27.21, -59.48)
CIE-LCH	lch(37.21, 65.41, 294.58°)
OKLab	oklab(46.91% -0.0053 -0.1715)
OKLCH	oklch(46.91% 0.172 268.2)
XYZ	xyz(12.8436, 9.6540, 47.0761)
Luminance	0.0965 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#334EB9 #B99E33

analogous

#3391B9 #334EB9 #5B33B9

triadic

#334EB9 #B9334E #4EB933

tetradic

#334EB9 #B93391 #B99E33 #33B95B

square

#334EB9 #B93391 #B99E33 #33B95B

split-complementary

#334EB9 #B95B33 #91B933

monochromatic

#192659 #263A89 #334EB9 #5871D1 #889ADE

Accessibility & contrast

On white

7.16

#334EB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#334EB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #334EB9

7.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##334EB9	#FFFFFF	#000000	##FFFFFF
##334EB9	1.00	7.16	2.93	7.16
#FFFFFF	7.16	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005EBD

Deuteranopia (green-blind)

#0052B7

Tritanopia (blue-blind)

#00697C

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #334eb9;
/* rgb */ color: rgb(51, 78, 185);
/* oklch */ color: oklch(46.9% 0.172 268.2);

Tailwind

colors: {
  custom: {
    50: '#7d7fcf',
    500: '#334eb9',
    950: '#000000',
  },
}

SCSS

$custom: #334eb9;
$custom-light: #7d7fcf;
$custom-dark: #000000;

JSON

{
  "hex": "#334eb9",
  "rgb": {
    "r": 51,
    "g": 78,
    "b": 185
  },
  "hsl": {
    "h": 227.91,
    "s": 56.78,
    "l": 46.275
  },
  "oklch": {
    "l": 0.46905,
    "c": 0.17162,
    "h": 268.2
  },
  "luminance": 0.09655
}

Semantic roles & 50–950 ramp

primary

#334EB9

secondary

#C8BA80

accent

#C148E0

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #334EB9

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

Preview Lab → · Contrast checker → · Palette generator →