#334BB1#334BB1

#334BB1 is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.7% C 0.164 H 268.9°. Best body text is #FFFFFF at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#334BB1
RGB	rgb(51, 75, 177)
HSL	hsl(229, 55%, 45%)
HSV	hsv(229, 71%, 69%)
CMYK	cmyk(71.2%, 57.6%, 0%, 30.6%)
CIE-LAB	lab(35.81, 26.22, -57.05)
CIE-LCH	lch(35.81, 62.79, 294.68°)
OKLab	oklab(45.66% -0.0032 -0.1644)
OKLCH	oklch(45.66% 0.164 268.9)
XYZ	xyz(11.8144, 8.9091, 42.6834)
Luminance	0.0891 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#334BB1 #B19933

analogous

#338AB1 #334BB1 #5A33B1

triadic

#334BB1 #B1334B #4BB133

tetradic

#334BB1 #B1338A #B19933 #33B15A

square

#334BB1 #B1338A #B19933 #33B15A

split-complementary

#334BB1 #B15A33 #8AB133

monochromatic

#182352 #253781 #334BB1 #546BCE #8394DB

Accessibility & contrast

On white

7.55

#334BB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#334BB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #334BB1

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##334BB1	#FFFFFF	#000000	##FFFFFF
##334BB1	1.00	7.55	2.78	7.55
#FFFFFF	7.55	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AB4

Deuteranopia (green-blind)

#004FAF

Tritanopia (blue-blind)

#006476

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #334bb1;
/* rgb */ color: rgb(51, 75, 177);
/* oklch */ color: oklch(45.7% 0.164 268.9);

Tailwind

colors: {
  custom: {
    50: '#7b7dc9',
    500: '#334bb1',
    950: '#000000',
  },
}

SCSS

$custom: #334bb1;
$custom-light: #7b7dc9;
$custom-dark: #000000;

JSON

{
  "hex": "#334bb1",
  "rgb": {
    "r": 51,
    "g": 75,
    "b": 177
  },
  "hsl": {
    "h": 228.571,
    "s": 55.263,
    "l": 44.706
  },
  "oklch": {
    "l": 0.45659,
    "c": 0.16445,
    "h": 268.9
  },
  "luminance": 0.0891
}

Semantic roles & 50–950 ramp

primary

#334BB1

secondary

#C5B77B

accent

#C249DF

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #334BB1

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

Preview Lab → · Contrast checker → · Palette generator →