#334CB3#334CB3

#334CB3 is a mid, vivid blue. Relative luminance 0.091; OKLCH L 46.0% C 0.166 H 268.6°. Best body text is #FFFFFF at 7.43:1 contrast (WCAG AA passes).

Color values

HEX	#334CB3
RGB	rgb(51, 76, 179)
HSL	hsl(228, 56%, 45%)
HSV	hsv(228, 72%, 70%)
CMYK	cmyk(71.5%, 57.5%, 0%, 29.8%)
CIE-LAB	lab(36.23, 26.30, -57.55)
CIE-LCH	lch(36.23, 63.28, 294.56°)
OKLab	oklab(46.02% -0.0039 -0.1659)
OKLCH	oklch(46.02% 0.166 268.6)
XYZ	xyz(12.0836, 9.1261, 43.7638)
Luminance	0.0913 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#334CB3 #B39A33

analogous

#338CB3 #334CB3 #5A33B3

triadic

#334CB3 #B3334C #4CB333

tetradic

#334CB3 #B3338C #B39A33 #33B35A

square

#334CB3 #B3338C #B39A33 #33B35A

split-complementary

#334CB3 #B35A33 #8CB333

monochromatic

#182454 #253883 #334CB3 #556CCE #8495DC

Accessibility & contrast

On white

7.43

#334CB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#334CB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #334CB3

7.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##334CB3	#FFFFFF	#000000	##FFFFFF
##334CB3	1.00	7.43	2.83	7.43
#FFFFFF	7.43	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB6

Deuteranopia (green-blind)

#0050B1

Tritanopia (blue-blind)

#006578

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #334cb3;
/* rgb */ color: rgb(51, 76, 179);
/* oklch */ color: oklch(46.0% 0.166 268.6);

Tailwind

colors: {
  custom: {
    50: '#7c7dcb',
    500: '#334cb3',
    950: '#000000',
  },
}

SCSS

$custom: #334cb3;
$custom-light: #7c7dcb;
$custom-dark: #000000;

JSON

{
  "hex": "#334cb3",
  "rgb": {
    "r": 51,
    "g": 76,
    "b": 179
  },
  "hsl": {
    "h": 228.281,
    "s": 55.652,
    "l": 45.098
  },
  "oklch": {
    "l": 0.4602,
    "c": 0.16594,
    "h": 268.6
  },
  "luminance": 0.09127
}

Semantic roles & 50–950 ramp

primary

#334CB3

secondary

#C6B77C

accent

#C249DF

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #334CB3

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

Preview Lab → · Contrast checker → · Palette generator →