#3351BD#3351BD

#3351BD is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.8% C 0.173 H 267.5°. Best body text is #FFFFFF at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#3351BD
RGB	rgb(51, 81, 189)
HSL	hsl(227, 58%, 47%)
HSV	hsv(227, 73%, 74%)
CMYK	cmyk(73%, 57.1%, 0%, 25.9%)
CIE-LAB	lab(38.31, 26.73, -60.05)
CIE-LCH	lch(38.31, 65.73, 293.99°)
OKLab	oklab(47.82% -0.0074 -0.1732)
OKLCH	oklch(47.82% 0.173 267.5)
XYZ	xyz(13.4898, 10.2614, 49.4039)
Luminance	0.1026 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3351BD #BD9F33

analogous

#3396BD #3351BD #5A33BD

triadic

#3351BD #BD3351 #51BD33

tetradic

#3351BD #BD3396 #BD9F33 #33BD5A

square

#3351BD #BD3396 #BD9F33 #33BD5A

split-complementary

#3351BD #BD5A33 #96BD33

monochromatic

#19285D #263C8D #3351BD #5B75D3 #8B9DE0

Accessibility & contrast

On white

6.88

#3351BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#3351BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3351BD

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3351BD	#FFFFFF	#000000	##FFFFFF
##3351BD	1.00	6.88	3.05	6.88
#FFFFFF	6.88	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C1

Deuteranopia (green-blind)

#0054BB

Tritanopia (blue-blind)

#006C7F

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3351bd;
/* rgb */ color: rgb(51, 81, 189);
/* oklch */ color: oklch(47.8% 0.173 267.5);

Tailwind

colors: {
  custom: {
    50: '#7d81d2',
    500: '#3351bd',
    950: '#000000',
  },
}

SCSS

$custom: #3351bd;
$custom-light: #7d81d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3351bd",
  "rgb": {
    "r": 51,
    "g": 81,
    "b": 189
  },
  "hsl": {
    "h": 226.957,
    "s": 57.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.4782,
    "c": 0.17332,
    "h": 267.5
  },
  "luminance": 0.10263
}

Semantic roles & 50–950 ramp

primary

#3351BD

secondary

#CABA82

accent

#BF47E1

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #3351BD

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

Preview Lab → · Contrast checker → · Palette generator →