#2F39B8#2F39B8

#2F39B8 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.8% C 0.196 H 271.4°. Best body text is #FFFFFF at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#2F39B8
RGB	rgb(47, 57, 184)
HSL	hsl(236, 59%, 45%)
HSV	hsv(236, 74%, 72%)
CMYK	cmyk(74.5%, 69%, 0%, 27.8%)
CIE-LAB	lab(31.78, 39.78, -67.78)
CIE-LCH	lch(31.78, 78.59, 300.40°)
OKLab	oklab(42.83% 0.0047 -0.1961)
OKLCH	oklch(42.83% 0.196 271.4)
XYZ	xyz(11.2842, 6.9901, 46.0926)
Luminance	0.0699 (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

#2F39B8 #B8AE2F

analogous

#2F7EB8 #2F39B8 #692FB8

triadic

#2F39B8 #B82F39 #39B82F

tetradic

#2F39B8 #B82F7E #B8AE2F #2FB869

square

#2F39B8 #B82F7E #B8AE2F #2FB869

split-complementary

#2F39B8 #B8692F #7EB82F

monochromatic

#161B57 #232A87 #2F39B8 #525BD3 #8289DF

Accessibility & contrast

On white

8.76

#2F39B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#2F39B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F39B8

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F39B8	#FFFFFF	#000000	##FFFFFF
##2F39B8	1.00	8.76	2.40	8.76
#FFFFFF	8.76	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051BC

Deuteranopia (green-blind)

#0044B6

Tritanopia (blue-blind)

#005C74

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2f39b8;
/* rgb */ color: rgb(47, 57, 184);
/* oklch */ color: oklch(42.8% 0.196 271.4);

Tailwind

colors: {
  custom: {
    50: '#7d70ce',
    500: '#2f39b8',
    950: '#000000',
  },
}

SCSS

$custom: #2f39b8;
$custom-light: #7d70ce;
$custom-dark: #000000;

JSON

{
  "hex": "#2f39b8",
  "rgb": {
    "r": 47,
    "g": 57,
    "b": 184
  },
  "hsl": {
    "h": 235.62,
    "s": 59.307,
    "l": 45.294
  },
  "oklch": {
    "l": 0.42826,
    "c": 0.19618,
    "h": 271.4
  },
  "luminance": 0.06991
}

Semantic roles & 50–950 ramp

primary

#2F39B8

secondary

#C8C37B

accent

#D745E2

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #2F39B8

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

Preview Lab → · Contrast checker → · Palette generator →