#2F3EB0#2F3EB0

#2F3EB0 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.9% C 0.180 H 270.7°. Best body text is #FFFFFF at 8.62:1 contrast (WCAG AA passes).

Color values

HEX	#2F3EB0
RGB	rgb(47, 62, 176)
HSL	hsl(233, 58%, 44%)
HSV	hsv(233, 73%, 69%)
CMYK	cmyk(73.3%, 64.8%, 0%, 31%)
CIE-LAB	lab(32.22, 33.80, -62.32)
CIE-LCH	lch(32.22, 70.89, 298.47°)
OKLab	oklab(42.92% 0.0023 -0.1801)
OKLCH	oklch(42.92% 0.18 270.7)
XYZ	xyz(10.7287, 7.1831, 41.8869)
Luminance	0.0718 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.99

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3EB0 #B0A12F

analogous

#2F7EB0 #2F3EB0 #602FB0

triadic

#2F3EB0 #B02F3E #3EB02F

tetradic

#2F3EB0 #B02F7E #B0A12F #2FB060

square

#2F3EB0 #B02F7E #B0A12F #2FB060

split-complementary

#2F3EB0 #B0602F #7EB02F

monochromatic

#151C4F #222D80 #2F3EB0 #4D5CCF #7D88DC

Accessibility & contrast

On white

8.62

#2F3EB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#2F3EB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3EB0

8.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3EB0	#FFFFFF	#000000	##FFFFFF
##2F3EB0	1.00	8.62	2.44	8.62
#FFFFFF	8.62	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B4

Deuteranopia (green-blind)

#0046AE

Tritanopia (blue-blind)

#005C71

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #2f3eb0;
/* rgb */ color: rgb(47, 62, 176);
/* oklch */ color: oklch(42.9% 0.180 270.7);

Tailwind

colors: {
  custom: {
    50: '#7a73c9',
    500: '#2f3eb0',
    950: '#000000',
  },
}

SCSS

$custom: #2f3eb0;
$custom-light: #7a73c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3eb0",
  "rgb": {
    "r": 47,
    "g": 62,
    "b": 176
  },
  "hsl": {
    "h": 233.023,
    "s": 57.848,
    "l": 43.725
  },
  "oklch": {
    "l": 0.42919,
    "c": 0.18014,
    "h": 270.7
  },
  "luminance": 0.07184
}

Semantic roles & 50–950 ramp

primary

#2F3EB0

secondary

#C5BC76

accent

#CF47E1

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2F3EB0

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

Preview Lab → · Contrast checker → · Palette generator →