#2F3CB4#2F3CB4

#2F3CB4 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.9% C 0.188 H 271.0°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).

Color values

HEX	#2F3CB4
RGB	rgb(47, 60, 180)
HSL	hsl(234, 59%, 45%)
HSV	hsv(234, 74%, 71%)
CMYK	cmyk(73.9%, 66.7%, 0%, 29.4%)
CIE-LAB	lab(32.10, 36.50, -64.89)
CIE-LCH	lch(32.10, 74.45, 299.36°)
OKLab	oklab(42.94% 0.0033 -0.1877)
OKLCH	oklch(42.94% 0.188 271)
XYZ	xyz(11.0236, 7.1302, 43.9665)
Luminance	0.0713 (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

#2F3CB4 #B4A72F

analogous

#2F7FB4 #2F3CB4 #642FB4

triadic

#2F3CB4 #B42F3C #3CB42F

tetradic

#2F3CB4 #B42F7F #B4A72F #2FB464

square

#2F3CB4 #B42F7F #B4A72F #2FB464

split-complementary

#2F3CB4 #B4642F #7FB42F

monochromatic

#161C53 #222C83 #2F3CB4 #4F5CD1 #8089DE

Accessibility & contrast

On white

8.66

#2F3CB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#2F3CB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3CB4

8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3CB4	#FFFFFF	#000000	##FFFFFF
##2F3CB4	1.00	8.66	2.43	8.66
#FFFFFF	8.66	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B8

Deuteranopia (green-blind)

#0045B2

Tritanopia (blue-blind)

#005C73

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #2f3cb4;
/* rgb */ color: rgb(47, 60, 180);
/* oklch */ color: oklch(42.9% 0.188 271.0);

Tailwind

colors: {
  custom: {
    50: '#7c72cc',
    500: '#2f3cb4',
    950: '#000000',
  },
}

SCSS

$custom: #2f3cb4;
$custom-light: #7c72cc;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3cb4",
  "rgb": {
    "r": 47,
    "g": 60,
    "b": 180
  },
  "hsl": {
    "h": 234.135,
    "s": 58.59,
    "l": 44.51
  },
  "oklch": {
    "l": 0.42943,
    "c": 0.18769,
    "h": 271
  },
  "luminance": 0.07131
}

Semantic roles & 50–950 ramp

primary

#2F3CB4

secondary

#C7BF78

accent

#D346E2

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2F3CB4

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

Preview Lab → · Contrast checker → · Palette generator →