#2F41B3#2F41B3

#2F41B3 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.7% C 0.181 H 270.1°. Best body text is #FFFFFF at 8.31:1 contrast (WCAG AA passes).

Color values

HEX	#2F41B3
RGB	rgb(47, 65, 179)
HSL	hsl(232, 58%, 44%)
HSV	hsv(232, 74%, 70%)
CMYK	cmyk(73.7%, 63.7%, 0%, 29.8%)
CIE-LAB	lab(33.22, 32.96, -62.47)
CIE-LCH	lch(33.22, 70.63, 297.82°)
OKLab	oklab(43.73% 0.0002 -0.1805)
OKLCH	oklch(43.73% 0.181 270.1)
XYZ	xyz(11.1965, 7.6384, 43.5234)
Luminance	0.0764 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F41B3 #B3A12F

analogous

#2F83B3 #2F41B3 #5F2FB3

triadic

#2F41B3 #B32F41 #41B32F

tetradic

#2F41B3 #B32F83 #B3A12F #2FB35F

square

#2F41B3 #B32F83 #B3A12F #2FB35F

split-complementary

#2F41B3 #B35F2F #83B32F

monochromatic

#161E52 #222F83 #2F41B3 #4F60D1 #7F8CDD

Accessibility & contrast

On white

8.31

#2F41B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#2F41B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F41B3

8.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F41B3	#FFFFFF	#000000	##FFFFFF
##2F41B3	1.00	8.31	2.53	8.31
#FFFFFF	8.31	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B7

Deuteranopia (green-blind)

#0048B1

Tritanopia (blue-blind)

#005F74

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2f41b3;
/* rgb */ color: rgb(47, 65, 179);
/* oklch */ color: oklch(43.7% 0.181 270.1);

Tailwind

colors: {
  custom: {
    50: '#7b75cb',
    500: '#2f41b3',
    950: '#000000',
  },
}

SCSS

$custom: #2f41b3;
$custom-light: #7b75cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2f41b3",
  "rgb": {
    "r": 47,
    "g": 65,
    "b": 179
  },
  "hsl": {
    "h": 231.818,
    "s": 58.407,
    "l": 44.314
  },
  "oklch": {
    "l": 0.43733,
    "c": 0.18053,
    "h": 270.1
  },
  "luminance": 0.0764
}

Semantic roles & 50–950 ramp

primary

#2F41B3

secondary

#C6BB78

accent

#CC46E2

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2F41B3

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

Preview Lab → · Contrast checker → · Palette generator →