#3139B9#3139B9

#3139B9 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.0% C 0.197 H 272.0°. Best body text is #FFFFFF at 8.69:1 contrast (WCAG AA passes).

Color values

HEX	#3139B9
RGB	rgb(49, 57, 185)
HSL	hsl(236, 58%, 46%)
HSV	hsv(236, 74%, 73%)
CMYK	cmyk(73.5%, 69.2%, 0%, 27.5%)
CIE-LAB	lab(31.99, 40.33, -68.03)
CIE-LCH	lch(31.99, 79.09, 300.66°)
OKLab	oklab(43.03% 0.0067 -0.1968)
OKLCH	oklch(43.03% 0.197 272)
XYZ	xyz(11.4837, 7.0808, 46.6511)
Luminance	0.0708 (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

#3139B9 #B9B131

analogous

#317DB9 #3139B9 #6D31B9

triadic

#3139B9 #B93139 #39B931

tetradic

#3139B9 #B9317D #B9B131 #31B96D

square

#3139B9 #B9317D #B9B131 #31B96D

split-complementary

#3139B9 #B96D31 #7DB931

monochromatic

#171B58 #242A89 #3139B9 #555DD2 #868BDF

Accessibility & contrast

On white

8.69

#3139B9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#3139B9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3139B9

8.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3139B9	#FFFFFF	#000000	##FFFFFF
##3139B9	1.00	8.69	2.42	8.69
#FFFFFF	8.69	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BD

Deuteranopia (green-blind)

#0045B7

Tritanopia (blue-blind)

#005C74

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3139b9;
/* rgb */ color: rgb(49, 57, 185);
/* oklch */ color: oklch(43.0% 0.197 272.0);

Tailwind

colors: {
  custom: {
    50: '#7e70cf',
    500: '#3139b9',
    950: '#000000',
  },
}

SCSS

$custom: #3139b9;
$custom-light: #7e70cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3139b9",
  "rgb": {
    "r": 49,
    "g": 57,
    "b": 185
  },
  "hsl": {
    "h": 236.471,
    "s": 58.12,
    "l": 45.882
  },
  "oklch": {
    "l": 0.43034,
    "c": 0.19692,
    "h": 272
  },
  "luminance": 0.07082
}

Semantic roles & 50–950 ramp

primary

#3139B9

secondary

#C8C47D

accent

#D846E1

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #3139B9

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

Preview Lab → · Contrast checker → · Palette generator →