#334BB3#334BB3

#334BB3 is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.8% C 0.167 H 268.9°. Best body text is #FFFFFF at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#334BB3
RGB	rgb(51, 75, 179)
HSL	hsl(229, 56%, 45%)
HSV	hsv(229, 72%, 70%)
CMYK	cmyk(71.5%, 58.1%, 0%, 29.8%)
CIE-LAB	lab(35.96, 26.96, -57.98)
CIE-LCH	lch(35.96, 63.94, 294.94°)
OKLab	oklab(45.82% -0.0031 -0.1672)
OKLCH	oklch(45.82% 0.167 268.9)
XYZ	xyz(12.0152, 8.9894, 43.7410)
Luminance	0.0899 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#334BB3 #B39B33

analogous

#338BB3 #334BB3 #5B33B3

triadic

#334BB3 #B3334B #4BB333

tetradic

#334BB3 #B3338B #B39B33 #33B35B

square

#334BB3 #B3338B #B39B33 #33B35B

split-complementary

#334BB3 #B35B33 #8BB333

monochromatic

#182354 #253783 #334BB3 #556CCE #8495DC

Accessibility & contrast

On white

7.50

#334BB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#334BB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #334BB3

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##334BB3	#FFFFFF	#000000	##FFFFFF
##334BB3	1.00	7.50	2.80	7.50
#FFFFFF	7.50	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB7

Deuteranopia (green-blind)

#004FB1

Tritanopia (blue-blind)

#006577

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #334bb3;
/* rgb */ color: rgb(51, 75, 179);
/* oklch */ color: oklch(45.8% 0.167 268.9);

Tailwind

colors: {
  custom: {
    50: '#7c7dcb',
    500: '#334bb3',
    950: '#000000',
  },
}

SCSS

$custom: #334bb3;
$custom-light: #7c7dcb;
$custom-dark: #000000;

JSON

{
  "hex": "#334bb3",
  "rgb": {
    "r": 51,
    "g": 75,
    "b": 179
  },
  "hsl": {
    "h": 228.75,
    "s": 55.652,
    "l": 45.098
  },
  "oklch": {
    "l": 0.45824,
    "c": 0.16719,
    "h": 268.9
  },
  "luminance": 0.08991
}

Semantic roles & 50–950 ramp

primary

#334BB3

secondary

#C6B87C

accent

#C349DF

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #334BB3

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

Preview Lab → · Contrast checker → · Palette generator →