#2F51BE#2F51BE

#2F51BE is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.7% C 0.176 H 266.5°. Best body text is #FFFFFF at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#2F51BE
RGB	rgb(47, 81, 190)
HSL	hsl(226, 60%, 46%)
HSV	hsv(226, 75%, 75%)
CMYK	cmyk(75.3%, 57.4%, 0%, 25.5%)
CIE-LAB	lab(38.21, 26.61, -60.80)
CIE-LCH	lch(38.21, 66.37, 293.64°)
OKLab	oklab(47.72% -0.0109 -0.1755)
OKLCH	oklch(47.72% 0.176 266.5)
XYZ	xyz(13.4057, 10.2054, 49.9685)
Luminance	0.1021 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F51BE #BE9C2F

analogous

#2F99BE #2F51BE #542FBE

triadic

#2F51BE #BE2F51 #51BE2F

tetradic

#2F51BE #BE2F99 #BE9C2F #2FBE54

square

#2F51BE #BE2F99 #BE9C2F #2FBE54

split-complementary

#2F51BE #BE542F #99BE2F

monochromatic

#17275C #233C8D #2F51BE #5574D5 #869CE1

Accessibility & contrast

On white

6.90

#2F51BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.04

#2F51BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F51BE

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F51BE	#FFFFFF	#000000	##FFFFFF
##2F51BE	1.00	6.90	3.04	6.90
#FFFFFF	6.90	1.00	21.00	1.00
#000000	3.04	21.00	1.00	21.00
##FFFFFF	6.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C2

Deuteranopia (green-blind)

#0054BC

Tritanopia (blue-blind)

#006C7F

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2f51be;
/* rgb */ color: rgb(47, 81, 190);
/* oklch */ color: oklch(47.7% 0.176 266.5);

Tailwind

colors: {
  custom: {
    50: '#7c81d2',
    500: '#2f51be',
    950: '#000000',
  },
}

SCSS

$custom: #2f51be;
$custom-light: #7c81d2;
$custom-dark: #000000;

JSON

{
  "hex": "#2f51be",
  "rgb": {
    "r": 47,
    "g": 81,
    "b": 190
  },
  "hsl": {
    "h": 225.734,
    "s": 60.338,
    "l": 46.471
  },
  "oklch": {
    "l": 0.47721,
    "c": 0.1758,
    "h": 266.5
  },
  "luminance": 0.10207
}

Semantic roles & 50–950 ramp

primary

#2F51BE

secondary

#CBB87E

accent

#BE44E3

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #2F51BE

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

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