#2F41B1#2F41B1

#2F41B1 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.6% C 0.178 H 270.1°. Best body text is #FFFFFF at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#2F41B1
RGB	rgb(47, 65, 177)
HSL	hsl(232, 58%, 44%)
HSV	hsv(232, 73%, 69%)
CMYK	cmyk(73.4%, 63.3%, 0%, 30.6%)
CIE-LAB	lab(33.05, 32.23, -61.56)
CIE-LCH	lch(33.05, 69.49, 297.63°)
OKLab	oklab(43.55% 0.0003 -0.1779)
OKLCH	oklch(43.55% 0.178 270.1)
XYZ	xyz(10.9957, 7.5581, 42.4658)
Luminance	0.0756 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F41B1 #B19F2F

analogous

#2F82B1 #2F41B1 #5E2FB1

triadic

#2F41B1 #B12F41 #41B12F

tetradic

#2F41B1 #B12F82 #B19F2F #2FB15E

square

#2F41B1 #B12F82 #B19F2F #2FB15E

split-complementary

#2F41B1 #B15E2F #82B12F

monochromatic

#151D50 #222F81 #2F41B1 #4D5FD0 #7E8BDD

Accessibility & contrast

On white

8.36

#2F41B1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#2F41B1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F41B1

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F41B1	#FFFFFF	#000000	##FFFFFF
##2F41B1	1.00	8.36	2.51	8.36
#FFFFFF	8.36	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B5

Deuteranopia (green-blind)

#0048AF

Tritanopia (blue-blind)

#005E73

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2f41b1;
/* rgb */ color: rgb(47, 65, 177);
/* oklch */ color: oklch(43.6% 0.178 270.1);

Tailwind

colors: {
  custom: {
    50: '#7a75c9',
    500: '#2f41b1',
    950: '#000000',
  },
}

SCSS

$custom: #2f41b1;
$custom-light: #7a75c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f41b1",
  "rgb": {
    "r": 47,
    "g": 65,
    "b": 177
  },
  "hsl": {
    "h": 231.692,
    "s": 58.036,
    "l": 43.922
  },
  "oklch": {
    "l": 0.43552,
    "c": 0.17788,
    "h": 270.1
  },
  "luminance": 0.07559
}

Semantic roles & 50–950 ramp

primary

#2F41B1

secondary

#C5BA76

accent

#CC47E1

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2F41B1

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

Preview Lab → · Contrast checker → · Palette generator →