#3133B2#3133B2

#3133B2 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.4% C 0.195 H 273.3°. Best body text is #FFFFFF at 9.35:1 contrast (WCAG AA passes).

Color values

HEX	#3133B2
RGB	rgb(49, 51, 178)
HSL	hsl(239, 57%, 45%)
HSV	hsv(239, 72%, 70%)
CMYK	cmyk(72.5%, 71.3%, 0%, 30.2%)
CIE-LAB	lab(30.00, 41.53, -67.16)
CIE-LCH	lch(30.00, 78.97, 301.73°)
OKLab	oklab(41.39% 0.011 -0.1942)
OKLCH	oklch(41.39% 0.195 273.3)
XYZ	xyz(10.4836, 6.2339, 42.7616)
Luminance	0.0624 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3133B2 #B2B031

analogous

#3174B2 #3133B2 #7031B2

triadic

#3133B2 #B23133 #33B231

tetradic

#3133B2 #B23174 #B2B031 #31B270

square

#3133B2 #B23174 #B2B031 #31B270

split-complementary

#3133B2 #B27031 #74B231

monochromatic

#171852 #242582 #3133B2 #5153CF #8182DC

Accessibility & contrast

On white

9.35

#3133B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#3133B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3133B2

9.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3133B2	#FFFFFF	#000000	##FFFFFF
##3133B2	1.00	9.35	2.25	9.35
#FFFFFF	9.35	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DB6

Deuteranopia (green-blind)

#0040B0

Tritanopia (blue-blind)

#00566F

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #3133b2;
/* rgb */ color: rgb(49, 51, 178);
/* oklch */ color: oklch(41.4% 0.195 273.3);

Tailwind

colors: {
  custom: {
    50: '#7d6cca',
    500: '#3133b2',
    950: '#000000',
  },
}

SCSS

$custom: #3133b2;
$custom-light: #7d6cca;
$custom-dark: #000000;

JSON

{
  "hex": "#3133b2",
  "rgb": {
    "r": 49,
    "g": 51,
    "b": 178
  },
  "hsl": {
    "h": 239.07,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.41393,
    "c": 0.19456,
    "h": 273.3
  },
  "luminance": 0.06235
}

Semantic roles & 50–950 ramp

primary

#3133B2

secondary

#C5C479

accent

#DE48E0

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3133B2

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

Preview Lab → · Contrast checker → · Palette generator →