#2F3BB3#2F3BB3

#2F3BB3 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.7% C 0.188 H 271.2°. Best body text is #FFFFFF at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#2F3BB3
RGB	rgb(47, 59, 179)
HSL	hsl(235, 58%, 44%)
HSV	hsv(235, 74%, 70%)
CMYK	cmyk(73.7%, 67%, 0%, 29.8%)
CIE-LAB	lab(31.77, 36.78, -64.83)
CIE-LCH	lch(31.77, 74.54, 299.56°)
OKLab	oklab(42.68% 0.004 -0.1875)
OKLCH	oklch(42.68% 0.188 271.2)
XYZ	xyz(10.8702, 6.9858, 43.4146)
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

#2F3BB3 #B3A72F

analogous

#2F7DB3 #2F3BB3 #652FB3

triadic

#2F3BB3 #B32F3B #3BB32F

tetradic

#2F3BB3 #B32F7D #B3A72F #2FB365

square

#2F3BB3 #B32F7D #B3A72F #2FB365

split-complementary

#2F3BB3 #B3652F #7DB32F

monochromatic

#161B52 #222B83 #2F3BB3 #4F5AD1 #7F88DD

Accessibility & contrast

On white

8.76

#2F3BB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#2F3BB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3BB3

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3BB3	#FFFFFF	#000000	##FFFFFF
##2F3BB3	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)

#0051B7

Deuteranopia (green-blind)

#0045B1

Tritanopia (blue-blind)

#005B72

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2f3bb3;
/* rgb */ color: rgb(47, 59, 179);
/* oklch */ color: oklch(42.7% 0.188 271.2);

Tailwind

colors: {
  custom: {
    50: '#7b71cb',
    500: '#2f3bb3',
    950: '#000000',
  },
}

SCSS

$custom: #2f3bb3;
$custom-light: #7b71cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3bb3",
  "rgb": {
    "r": 47,
    "g": 59,
    "b": 179
  },
  "hsl": {
    "h": 234.545,
    "s": 58.407,
    "l": 44.314
  },
  "oklch": {
    "l": 0.42676,
    "c": 0.18754,
    "h": 271.2
  },
  "luminance": 0.06987
}

Semantic roles & 50–950 ramp

primary

#2F3BB3

secondary

#C6BF78

accent

#D346E2

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2F3BB3

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

Preview Lab → · Contrast checker → · Palette generator →