#3139BA#3139BA

#3139BA is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.1% C 0.198 H 271.9°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).

Color values

HEX	#3139BA
RGB	rgb(49, 57, 186)
HSL	hsl(236, 58%, 46%)
HSV	hsv(236, 74%, 73%)
CMYK	cmyk(73.7%, 69.4%, 0%, 27.1%)
CIE-LAB	lab(32.09, 40.67, -68.47)
CIE-LCH	lch(32.09, 79.64, 300.71°)
OKLab	oklab(43.13% 0.0066 -0.1981)
OKLCH	oklch(43.13% 0.198 271.9)
XYZ	xyz(11.5897, 7.1232, 47.2090)
Luminance	0.0712 (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

#3139BA #BAB231

analogous

#317DBA #3139BA #6D31BA

triadic

#3139BA #BA3139 #39BA31

tetradic

#3139BA #BA317D #BAB231 #31BA6D

square

#3139BA #BA317D #BAB231 #31BA6D

split-complementary

#3139BA #BA6D31 #7DBA31

monochromatic

#171B59 #242A8A #3139BA #565DD2 #868BDF

Accessibility & contrast

On white

8.66

#3139BA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#3139BA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3139BA

8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3139BA	#FFFFFF	#000000	##FFFFFF
##3139BA	1.00	8.66	2.42	8.66
#FFFFFF	8.66	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BE

Deuteranopia (green-blind)

#0045B8

Tritanopia (blue-blind)

#005C75

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #3139ba;
/* rgb */ color: rgb(49, 57, 186);
/* oklch */ color: oklch(43.1% 0.198 271.9);

Tailwind

colors: {
  custom: {
    50: '#7e70d0',
    500: '#3139ba',
    950: '#000000',
  },
}

SCSS

$custom: #3139ba;
$custom-light: #7e70d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3139ba",
  "rgb": {
    "r": 49,
    "g": 57,
    "b": 186
  },
  "hsl": {
    "h": 236.496,
    "s": 58.298,
    "l": 46.078
  },
  "oklch": {
    "l": 0.43131,
    "c": 0.19818,
    "h": 271.9
  },
  "luminance": 0.07124
}

Semantic roles & 50–950 ramp

primary

#3139BA

secondary

#C9C47E

accent

#D846E2

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #3139BA

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

Preview Lab → · Contrast checker → · Palette generator →