#3139AC#3139AC

#3139AC is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.8% C 0.180 H 272.6°. Best body text is #FFFFFF at 9.08:1 contrast (WCAG AA passes).

Color values

HEX	#3139AC
RGB	rgb(49, 57, 172)
HSL	hsl(236, 56%, 43%)
HSV	hsv(236, 72%, 67%)
CMYK	cmyk(71.5%, 66.9%, 0%, 32.5%)
CIE-LAB	lab(30.78, 35.78, -62.29)
CIE-LCH	lch(30.78, 71.84, 299.87°)
OKLab	oklab(41.78% 0.0081 -0.18)
OKLCH	oklch(41.78% 0.18 272.6)
XYZ	xyz(10.1736, 6.5568, 39.7512)
Luminance	0.0656 (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

#3139AC #ACA431

analogous

#3176AC #3139AC #6731AC

triadic

#3139AC #AC3139 #39AC31

tetradic

#3139AC #AC3176 #ACA431 #31AC67

square

#3139AC #AC3176 #ACA431 #31AC67

split-complementary

#3139AC #AC6731 #76AC31

monochromatic

#16194D #23297C #3139AC #4E56CC #7D83DA

Accessibility & contrast

On white

9.08

#3139AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#3139AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3139AC

9.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3139AC	#FFFFFF	#000000	##FFFFFF
##3139AC	1.00	9.08	2.31	9.08
#FFFFFF	9.08	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB0

Deuteranopia (green-blind)

#0043AA

Tritanopia (blue-blind)

#00586D

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3139ac;
/* rgb */ color: rgb(49, 57, 172);
/* oklch */ color: oklch(41.8% 0.180 272.6);

Tailwind

colors: {
  custom: {
    50: '#7b70c6',
    500: '#3139ac',
    950: '#000000',
  },
}

SCSS

$custom: #3139ac;
$custom-light: #7b70c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3139ac",
  "rgb": {
    "r": 49,
    "g": 57,
    "b": 172
  },
  "hsl": {
    "h": 236.098,
    "s": 55.656,
    "l": 43.333
  },
  "oklch": {
    "l": 0.41784,
    "c": 0.1802,
    "h": 272.6
  },
  "luminance": 0.06558
}

Semantic roles & 50–950 ramp

primary

#3139AC

secondary

#C3BE76

accent

#D549DF

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3139AC

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

Preview Lab → · Contrast checker → · Palette generator →