#2F57D3#2F57D3

#2F57D3 is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.6% C 0.196 H 265.9°. Best body text is #FFFFFF at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#2F57D3
RGB	rgb(47, 87, 211)
HSL	hsl(225, 65%, 51%)
HSV	hsv(225, 78%, 83%)
CMYK	cmyk(77.7%, 58.8%, 0%, 17.3%)
CIE-LAB	lab(41.41, 30.53, -67.76)
CIE-LCH	lch(41.41, 74.32, 294.26°)
OKLab	oklab(50.63% -0.0142 -0.1958)
OKLCH	oklch(50.63% 0.196 265.9)
XYZ	xyz(16.3342, 12.1220, 63.0943)
Luminance	0.1212 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F57D3 #D3AB2F

analogous

#2FA9D3 #2F57D3 #592FD3

triadic

#2F57D3 #D32F57 #57D32F

tetradic

#2F57D3 #D32FA9 #D3AB2F #2FD359

square

#2F57D3 #D32FA9 #D3AB2F #2FD359

split-complementary

#2F57D3 #D3592F #A9D32F

monochromatic

#182D70 #2242A2 #2F57D3 #6280DE #94A9E8

Accessibility & contrast

On white

6.13

#2F57D3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#2F57D3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F57D3

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F57D3	#FFFFFF	#000000	##FFFFFF
##2F57D3	1.00	6.13	3.42	6.13
#FFFFFF	6.13	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD7

Deuteranopia (green-blind)

#005AD1

Tritanopia (blue-blind)

#00768C

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #2f57d3;
/* rgb */ color: rgb(47, 87, 211);
/* oklch */ color: oklch(50.6% 0.196 265.9);

Tailwind

colors: {
  custom: {
    50: '#8185e1',
    500: '#2f57d3',
    950: '#000000',
  },
}

SCSS

$custom: #2f57d3;
$custom-light: #8185e1;
$custom-dark: #000000;

JSON

{
  "hex": "#2f57d3",
  "rgb": {
    "r": 47,
    "g": 87,
    "b": 211
  },
  "hsl": {
    "h": 225.366,
    "s": 65.079,
    "l": 50.588
  },
  "oklch": {
    "l": 0.50631,
    "c": 0.1963,
    "h": 265.9
  },
  "luminance": 0.12124
}

Semantic roles & 50–950 ramp

primary

#2F57D3

secondary

#D3C28A

accent

#BF40E8

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #2F57D3

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

Preview Lab → · Contrast checker → · Palette generator →