#2F39B5#2F39B5

#2F39B5 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.5% C 0.192 H 271.5°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#2F39B5
RGB	rgb(47, 57, 181)
HSL	hsl(236, 59%, 45%)
HSV	hsv(236, 74%, 71%)
CMYK	cmyk(74%, 68.5%, 0%, 29%)
CIE-LAB	lab(31.50, 38.73, -66.48)
CIE-LCH	lch(31.50, 76.93, 300.22°)
OKLab	oklab(42.53% 0.005 -0.1923)
OKLCH	oklch(42.53% 0.192 271.5)
XYZ	xyz(10.9731, 6.8656, 44.4540)
Luminance	0.0687 (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

#2F39B5 #B5AB2F

analogous

#2F7CB5 #2F39B5 #682FB5

triadic

#2F39B5 #B52F39 #39B52F

tetradic

#2F39B5 #B52F7C #B5AB2F #2FB568

square

#2F39B5 #B52F7C #B5AB2F #2FB568

split-complementary

#2F39B5 #B5682F #7CB52F

monochromatic

#161A54 #222A84 #2F39B5 #5059D1 #8087DE

Accessibility & contrast

On white

8.85

#2F39B5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#2F39B5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F39B5

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F39B5	#FFFFFF	#000000	##FFFFFF
##2F39B5	1.00	8.85	2.37	8.85
#FFFFFF	8.85	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B9

Deuteranopia (green-blind)

#0044B3

Tritanopia (blue-blind)

#005B72

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2f39b5;
/* rgb */ color: rgb(47, 57, 181);
/* oklch */ color: oklch(42.5% 0.192 271.5);

Tailwind

colors: {
  custom: {
    50: '#7c70cc',
    500: '#2f39b5',
    950: '#000000',
  },
}

SCSS

$custom: #2f39b5;
$custom-light: #7c70cc;
$custom-dark: #000000;

JSON

{
  "hex": "#2f39b5",
  "rgb": {
    "r": 47,
    "g": 57,
    "b": 181
  },
  "hsl": {
    "h": 235.522,
    "s": 58.772,
    "l": 44.706
  },
  "oklch": {
    "l": 0.42533,
    "c": 0.19237,
    "h": 271.5
  },
  "luminance": 0.06867
}

Semantic roles & 50–950 ramp

primary

#2F39B5

secondary

#C7C179

accent

#D646E2

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #2F39B5

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

Preview Lab → · Contrast checker → · Palette generator →