#2F57AA#2F57AA

#2F57AA is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.4% C 0.141 H 262.8°. Best body text is #FFFFFF at 6.85:1 contrast (WCAG AA passes).

Color values

HEX	#2F57AA
RGB	rgb(47, 87, 170)
HSL	hsl(220, 57%, 43%)
HSV	hsv(220, 72%, 67%)
CMYK	cmyk(72.4%, 48.8%, 0%, 33.3%)
CIE-LAB	lab(38.41, 15.13, -48.69)
CIE-LCH	lch(38.41, 50.99, 287.26°)
OKLab	oklab(47.42% -0.0175 -0.1397)
OKLCH	oklch(47.42% 0.141 262.8)
XYZ	xyz(11.8336, 10.3218, 39.3911)
Luminance	0.1032 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F57AA #AA822F

analogous

#2F94AA #2F57AA #452FAA

triadic

#2F57AA #AA2F57 #57AA2F

tetradic

#2F57AA #AA2F94 #AA822F #2FAA45

square

#2F57AA #AA2F94 #AA822F #2FAA45

split-complementary

#2F57AA #AA452F #94AA2F

monochromatic

#14264A #223E7A #2F57AA #4974CD #7999DA

Accessibility & contrast

On white

6.85

#2F57AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#2F57AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F57AA

6.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F57AA	#FFFFFF	#000000	##FFFFFF
##2F57AA	1.00	6.85	3.06	6.85
#FFFFFF	6.85	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2960AD

Deuteranopia (green-blind)

#0355A8

Tritanopia (blue-blind)

#006B78

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2f57aa;
/* rgb */ color: rgb(47, 87, 170);
/* oklch */ color: oklch(47.4% 0.141 262.8);

Tailwind

colors: {
  custom: {
    50: '#7785c4',
    500: '#2f57aa',
    950: '#000000',
  },
}

SCSS

$custom: #2f57aa;
$custom-light: #7785c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2f57aa",
  "rgb": {
    "r": 47,
    "g": 87,
    "b": 170
  },
  "hsl": {
    "h": 220.488,
    "s": 56.682,
    "l": 42.549
  },
  "oklch": {
    "l": 0.47421,
    "c": 0.14083,
    "h": 262.8
  },
  "luminance": 0.10323
}

Semantic roles & 50–950 ramp

primary

#2F57AA

secondary

#C2A872

accent

#AE48E0

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2F57AA

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

Preview Lab → · Contrast checker → · Palette generator →