#3351BC#3351BC

#3351BC is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.7% C 0.172 H 267.5°. Best body text is #FFFFFF at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#3351BC
RGB	rgb(51, 81, 188)
HSL	hsl(227, 57%, 47%)
HSV	hsv(227, 73%, 74%)
CMYK	cmyk(72.9%, 56.9%, 0%, 26.3%)
CIE-LAB	lab(38.23, 26.36, -59.59)
CIE-LCH	lch(38.23, 65.16, 293.86°)
OKLab	oklab(47.74% -0.0075 -0.1718)
OKLCH	oklch(47.74% 0.172 267.5)
XYZ	xyz(13.3816, 10.2181, 48.8343)
Luminance	0.1022 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3351BC #BC9E33

analogous

#3396BC #3351BC #5933BC

triadic

#3351BC #BC3351 #51BC33

tetradic

#3351BC #BC3396 #BC9E33 #33BC59

square

#3351BC #BC3396 #BC9E33 #33BC59

split-complementary

#3351BC #BC5933 #96BC33

monochromatic

#19285C #263C8C #3351BC #5A74D2 #8A9DDF

Accessibility & contrast

On white

6.90

#3351BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#3351BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3351BC

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3351BC	#FFFFFF	#000000	##FFFFFF
##3351BC	1.00	6.90	3.04	6.90
#FFFFFF	6.90	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C0

Deuteranopia (green-blind)

#0054BA

Tritanopia (blue-blind)

#006B7E

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3351bc;
/* rgb */ color: rgb(51, 81, 188);
/* oklch */ color: oklch(47.7% 0.172 267.5);

Tailwind

colors: {
  custom: {
    50: '#7d81d1',
    500: '#3351bc',
    950: '#000000',
  },
}

SCSS

$custom: #3351bc;
$custom-light: #7d81d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3351bc",
  "rgb": {
    "r": 51,
    "g": 81,
    "b": 188
  },
  "hsl": {
    "h": 226.861,
    "s": 57.322,
    "l": 46.863
  },
  "oklch": {
    "l": 0.47738,
    "c": 0.17197,
    "h": 267.5
  },
  "luminance": 0.1022
}

Semantic roles & 50–950 ramp

primary

#3351BC

secondary

#C9BA81

accent

#BF47E1

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3351BC

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

Preview Lab → · Contrast checker → · Palette generator →