#2F57AD#2F57AD

#2F57AD is a mid, vivid blue. Relative luminance 0.104; OKLCH L 47.6% C 0.145 H 263.2°. Best body text is #FFFFFF at 6.80:1 contrast (WCAG AA passes).

Color values

HEX	#2F57AD
RGB	rgb(47, 87, 173)
HSL	hsl(221, 57%, 43%)
HSV	hsv(221, 73%, 68%)
CMYK	cmyk(72.8%, 49.7%, 0%, 32.2%)
CIE-LAB	lab(38.61, 16.26, -50.15)
CIE-LCH	lch(38.61, 52.72, 287.97°)
OKLab	oklab(47.64% -0.0171 -0.144)
OKLCH	oklch(47.64% 0.145 263.2)
XYZ	xyz(12.1206, 10.4366, 40.9027)
Luminance	0.1044 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F57AD #AD852F

analogous

#2F96AD #2F57AD #462FAD

triadic

#2F57AD #AD2F57 #57AD2F

tetradic

#2F57AD #AD2F96 #AD852F #2FAD46

square

#2F57AD #AD2F96 #AD852F #2FAD46

split-complementary

#2F57AD #AD462F #96AD2F

monochromatic

#15274D #223F7D #2F57AD #4B75CE #7B9ADB

Accessibility & contrast

On white

6.80

#2F57AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#2F57AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F57AD

6.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F57AD	#FFFFFF	#000000	##FFFFFF
##2F57AD	1.00	6.80	3.09	6.80
#FFFFFF	6.80	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2661B0

Deuteranopia (green-blind)

#0055AB

Tritanopia (blue-blind)

#006B7A

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #2f57ad;
/* rgb */ color: rgb(47, 87, 173);
/* oklch */ color: oklch(47.6% 0.145 263.2);

Tailwind

colors: {
  custom: {
    50: '#7885c6',
    500: '#2f57ad',
    950: '#000000',
  },
}

SCSS

$custom: #2f57ad;
$custom-light: #7885c6;
$custom-dark: #000000;

JSON

{
  "hex": "#2f57ad",
  "rgb": {
    "r": 47,
    "g": 87,
    "b": 173
  },
  "hsl": {
    "h": 220.952,
    "s": 57.273,
    "l": 43.137
  },
  "oklch": {
    "l": 0.47639,
    "c": 0.14501,
    "h": 263.2
  },
  "luminance": 0.10438
}

Semantic roles & 50–950 ramp

primary

#2F57AD

secondary

#C4AA74

accent

#B047E1

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2F57AD

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

Preview Lab → · Contrast checker → · Palette generator →