#2F3CB2#2F3CB2

#2F3CB2 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.8% C 0.185 H 271.1°. Best body text is #FFFFFF at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#2F3CB2
RGB	rgb(47, 60, 178)
HSL	hsl(234, 58%, 44%)
HSV	hsv(234, 74%, 70%)
CMYK	cmyk(73.6%, 66.3%, 0%, 30.2%)
CIE-LAB	lab(31.92, 35.79, -64.00)
CIE-LCH	lch(31.92, 73.33, 299.21°)
OKLab	oklab(42.75% 0.0035 -0.1851)
OKLCH	oklch(42.75% 0.185 271.1)
XYZ	xyz(10.8213, 7.0493, 42.9012)
Luminance	0.0705 (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

#2F3CB2 #B2A52F

analogous

#2F7EB2 #2F3CB2 #642FB2

triadic

#2F3CB2 #B22F3C #3CB22F

tetradic

#2F3CB2 #B22F7E #B2A52F #2FB264

square

#2F3CB2 #B22F7E #B2A52F #2FB264

split-complementary

#2F3CB2 #B2642F #7EB22F

monochromatic

#151B51 #222C82 #2F3CB2 #4E5BD0 #7E88DD

Accessibility & contrast

On white

8.71

#2F3CB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#2F3CB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3CB2

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3CB2	#FFFFFF	#000000	##FFFFFF
##2F3CB2	1.00	8.71	2.41	8.71
#FFFFFF	8.71	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B6

Deuteranopia (green-blind)

#0045B0

Tritanopia (blue-blind)

#005B71

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2f3cb2;
/* rgb */ color: rgb(47, 60, 178);
/* oklch */ color: oklch(42.8% 0.185 271.1);

Tailwind

colors: {
  custom: {
    50: '#7b72ca',
    500: '#2f3cb2',
    950: '#000000',
  },
}

SCSS

$custom: #2f3cb2;
$custom-light: #7b72ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3cb2",
  "rgb": {
    "r": 47,
    "g": 60,
    "b": 178
  },
  "hsl": {
    "h": 234.046,
    "s": 58.222,
    "l": 44.118
  },
  "oklch": {
    "l": 0.42754,
    "c": 0.18509,
    "h": 271.1
  },
  "luminance": 0.0705
}

Semantic roles & 50–950 ramp

primary

#2F3CB2

secondary

#C6BE77

accent

#D246E1

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2F3CB2

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

Preview Lab → · Contrast checker → · Palette generator →