#2F51A2#2F51A2

#2F51A2 is a mid, vivid blue. Relative luminance 0.091; OKLCH L 45.5% C 0.137 H 264.5°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#2F51A2
RGB	rgb(47, 81, 162)
HSL	hsl(222, 55%, 41%)
HSV	hsv(222, 71%, 64%)
CMYK	cmyk(71%, 50%, 0%, 36.5%)
CIE-LAB	lab(36.17, 16.06, -47.54)
CIE-LCH	lch(36.17, 50.18, 288.67°)
OKLab	oklab(45.53% -0.0132 -0.1364)
OKLCH	oklch(45.53% 0.137 264.5)
XYZ	xyz(10.6340, 9.0967, 35.3708)
Luminance	0.0910 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F51A2 #A2802F

analogous

#2F8AA2 #2F51A2 #462FA2

triadic

#2F51A2 #A22F51 #51A22F

tetradic

#2F51A2 #A22F8A #A2802F #2FA246

square

#2F51A2 #A22F8A #A2802F #2FA246

split-complementary

#2F51A2 #A2462F #8AA22F

monochromatic

#132243 #213973 #2F51A2 #456CC9 #7592D7

Accessibility & contrast

On white

7.45

#2F51A2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#2F51A2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F51A2

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F51A2	#FFFFFF	#000000	##FFFFFF
##2F51A2	1.00	7.45	2.82	7.45
#FFFFFF	7.45	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#235BA5

Deuteranopia (green-blind)

#0050A0

Tritanopia (blue-blind)

#006472

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #2f51a2;
/* rgb */ color: rgb(47, 81, 162);
/* oklch */ color: oklch(45.5% 0.137 264.5);

Tailwind

colors: {
  custom: {
    50: '#7681be',
    500: '#2f51a2',
    950: '#000000',
  },
}

SCSS

$custom: #2f51a2;
$custom-light: #7681be;
$custom-dark: #000000;

JSON

{
  "hex": "#2f51a2",
  "rgb": {
    "r": 47,
    "g": 81,
    "b": 162
  },
  "hsl": {
    "h": 222.261,
    "s": 55.024,
    "l": 40.98
  },
  "oklch": {
    "l": 0.45534,
    "c": 0.13707,
    "h": 264.5
  },
  "luminance": 0.09098
}

Semantic roles & 50–950 ramp

primary

#2F51A2

secondary

#BFA76E

accent

#B249DE

background

#F7F7FB

surface

#EEEEF7

border

#C9C9D0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #2F51A2

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

Preview Lab → · Contrast checker → · Palette generator →