#334CB1#334CB1

#334CB1 is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.9% C 0.163 H 268.6°. Best body text is #FFFFFF at 7.47:1 contrast (WCAG AA passes).

Color values

HEX	#334CB1
RGB	rgb(51, 76, 177)
HSL	hsl(228, 55%, 45%)
HSV	hsv(228, 71%, 69%)
CMYK	cmyk(71.2%, 57.1%, 0%, 30.6%)
CIE-LAB	lab(36.07, 25.56, -56.62)
CIE-LCH	lch(36.07, 62.12, 294.30°)
OKLab	oklab(45.86% -0.004 -0.1631)
OKLCH	oklch(45.86% 0.163 268.6)
XYZ	xyz(11.8828, 9.0458, 42.7062)
Luminance	0.0905 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#334CB1 #B19833

analogous

#338BB1 #334CB1 #5933B1

triadic

#334CB1 #B1334C #4CB133

tetradic

#334CB1 #B1338B #B19833 #33B159

square

#334CB1 #B1338B #B19833 #33B159

split-complementary

#334CB1 #B15933 #8BB133

monochromatic

#182352 #253881 #334CB1 #546CCE #8395DB

Accessibility & contrast

On white

7.47

#334CB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#334CB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #334CB1

7.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##334CB1	#FFFFFF	#000000	##FFFFFF
##334CB1	1.00	7.47	2.81	7.47
#FFFFFF	7.47	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB4

Deuteranopia (green-blind)

#004FAF

Tritanopia (blue-blind)

#006577

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #334cb1;
/* rgb */ color: rgb(51, 76, 177);
/* oklch */ color: oklch(45.9% 0.163 268.6);

Tailwind

colors: {
  custom: {
    50: '#7b7dc9',
    500: '#334cb1',
    950: '#000000',
  },
}

SCSS

$custom: #334cb1;
$custom-light: #7b7dc9;
$custom-dark: #000000;

JSON

{
  "hex": "#334cb1",
  "rgb": {
    "r": 51,
    "g": 76,
    "b": 177
  },
  "hsl": {
    "h": 228.095,
    "s": 55.263,
    "l": 44.706
  },
  "oklch": {
    "l": 0.45856,
    "c": 0.1632,
    "h": 268.6
  },
  "luminance": 0.09047
}

Semantic roles & 50–950 ramp

primary

#334CB1

secondary

#C5B67B

accent

#C149DF

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #334CB1

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

Preview Lab → · Contrast checker → · Palette generator →