#334BB0#334BB0

#334BB0 is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.6% C 0.163 H 268.9°. Best body text is #FFFFFF at 7.57:1 contrast (WCAG AA passes).

Color values

HEX	#334BB0
RGB	rgb(51, 75, 176)
HSL	hsl(228, 55%, 45%)
HSV	hsv(228, 71%, 69%)
CMYK	cmyk(71%, 57.4%, 0%, 31%)
CIE-LAB	lab(35.73, 25.85, -56.58)
CIE-LCH	lch(35.73, 62.21, 294.55°)
OKLab	oklab(45.58% -0.0032 -0.163)
OKLCH	oklch(45.58% 0.163 268.9)
XYZ	xyz(11.7151, 8.8694, 42.1604)
Luminance	0.0887 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#334BB0 #B09833

analogous

#338AB0 #334BB0 #5A33B0

triadic

#334BB0 #B0334B #4BB033

tetradic

#334BB0 #B0338A #B09833 #33B05A

square

#334BB0 #B0338A #B09833 #33B05A

split-complementary

#334BB0 #B05A33 #8AB033

monochromatic

#182351 #253781 #334BB0 #536ACD #8293DB

Accessibility & contrast

On white

7.57

#334BB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#334BB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #334BB0

7.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##334BB0	#FFFFFF	#000000	##FFFFFF
##334BB0	1.00	7.57	2.77	7.57
#FFFFFF	7.57	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AB3

Deuteranopia (green-blind)

#004EAE

Tritanopia (blue-blind)

#006476

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #334bb0;
/* rgb */ color: rgb(51, 75, 176);
/* oklch */ color: oklch(45.6% 0.163 268.9);

Tailwind

colors: {
  custom: {
    50: '#7b7dc8',
    500: '#334bb0',
    950: '#000000',
  },
}

SCSS

$custom: #334bb0;
$custom-light: #7b7dc8;
$custom-dark: #000000;

JSON

{
  "hex": "#334bb0",
  "rgb": {
    "r": 51,
    "g": 75,
    "b": 176
  },
  "hsl": {
    "h": 228.48,
    "s": 55.066,
    "l": 44.51
  },
  "oklch": {
    "l": 0.45577,
    "c": 0.16308,
    "h": 268.9
  },
  "luminance": 0.08871
}

Semantic roles & 50–950 ramp

primary

#334BB0

secondary

#C4B67B

accent

#C249DE

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #334BB0

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

Preview Lab → · Contrast checker → · Palette generator →