#2F3EB1#2F3EB1

#2F3EB1 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.0% C 0.181 H 270.7°. Best body text is #FFFFFF at 8.59:1 contrast (WCAG AA passes).

Color values

HEX	#2F3EB1
RGB	rgb(47, 62, 177)
HSL	hsl(233, 58%, 44%)
HSV	hsv(233, 73%, 69%)
CMYK	cmyk(73.4%, 65%, 0%, 30.6%)
CIE-LAB	lab(32.31, 34.16, -62.77)
CIE-LCH	lch(32.31, 71.46, 298.55°)
OKLab	oklab(43.01% 0.0023 -0.1814)
OKLCH	oklch(43.01% 0.181 270.7)
XYZ	xyz(10.8280, 7.2228, 42.4099)
Luminance	0.0722 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.89

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3EB1 #B1A22F

analogous

#2F7FB1 #2F3EB1 #612FB1

triadic

#2F3EB1 #B12F3E #3EB12F

tetradic

#2F3EB1 #B12F7F #B1A22F #2FB161

square

#2F3EB1 #B12F7F #B1A22F #2FB161

split-complementary

#2F3EB1 #B1612F #7FB12F

monochromatic

#151C50 #222D81 #2F3EB1 #4D5CD0 #7E89DD

Accessibility & contrast

On white

8.59

#2F3EB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#2F3EB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3EB1

8.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3EB1	#FFFFFF	#000000	##FFFFFF
##2F3EB1	1.00	8.59	2.44	8.59
#FFFFFF	8.59	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B5

Deuteranopia (green-blind)

#0046AF

Tritanopia (blue-blind)

#005C72

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #2f3eb1;
/* rgb */ color: rgb(47, 62, 177);
/* oklch */ color: oklch(43.0% 0.181 270.7);

Tailwind

colors: {
  custom: {
    50: '#7b73c9',
    500: '#2f3eb1',
    950: '#000000',
  },
}

SCSS

$custom: #2f3eb1;
$custom-light: #7b73c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3eb1",
  "rgb": {
    "r": 47,
    "g": 62,
    "b": 177
  },
  "hsl": {
    "h": 233.077,
    "s": 58.036,
    "l": 43.922
  },
  "oklch": {
    "l": 0.43011,
    "c": 0.18145,
    "h": 270.7
  },
  "luminance": 0.07224
}

Semantic roles & 50–950 ramp

primary

#2F3EB1

secondary

#C5BC76

accent

#CF47E1

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2F3EB1

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

Preview Lab → · Contrast checker → · Palette generator →