#334BBB#334BBB

#334BBB is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.5% C 0.178 H 269.0°. Best body text is #FFFFFF at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#334BBB
RGB	rgb(51, 75, 187)
HSL	hsl(229, 57%, 47%)
HSV	hsv(229, 73%, 73%)
CMYK	cmyk(72.7%, 59.9%, 0%, 26.7%)
CIE-LAB	lab(36.60, 29.89, -61.66)
CIE-LCH	lch(36.60, 68.53, 295.86°)
OKLab	oklab(46.49% -0.003 -0.178)
OKLCH	oklch(46.49% 0.178 269)
XYZ	xyz(12.8479, 9.3225, 48.1264)
Luminance	0.0932 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#334BBB #BBA333

analogous

#338FBB #334BBB #5F33BB

triadic

#334BBB #BB334B #4BBB33

tetradic

#334BBB #BB338F #BBA333 #33BB5F

square

#334BBB #BB338F #BBA333 #33BB5F

split-complementary

#334BBB #BB5F33 #8FBB33

monochromatic

#19245B #26388B #334BBB #596FD2 #8999DF

Accessibility & contrast

On white

7.33

#334BBB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#334BBB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #334BBB

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##334BBB	#FFFFFF	#000000	##FFFFFF
##334BBB	1.00	7.33	2.86	7.33
#FFFFFF	7.33	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DBF

Deuteranopia (green-blind)

#0050B9

Tritanopia (blue-blind)

#00677C

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #334bbb;
/* rgb */ color: rgb(51, 75, 187);
/* oklch */ color: oklch(46.5% 0.178 269.0);

Tailwind

colors: {
  custom: {
    50: '#7d7dd0',
    500: '#334bbb',
    950: '#000000',
  },
}

SCSS

$custom: #334bbb;
$custom-light: #7d7dd0;
$custom-dark: #000000;

JSON

{
  "hex": "#334bbb",
  "rgb": {
    "r": 51,
    "g": 75,
    "b": 187
  },
  "hsl": {
    "h": 229.412,
    "s": 57.143,
    "l": 46.667
  },
  "oklch": {
    "l": 0.46494,
    "c": 0.17801,
    "h": 269
  },
  "luminance": 0.09324
}

Semantic roles & 50–950 ramp

primary

#334BBB

secondary

#C9BC81

accent

#C547E0

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0914

muted

#7C7B82

Preview Lab

Preview with #334BBB

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

Preview Lab → · Contrast checker → · Palette generator →