#2F63B8#2F63B8

#2F63B8 is a mid, vivid blue. Relative luminance 0.130; OKLCH L 51.0% C 0.146 H 259.8°. Best body text is #FFFFFF at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#2F63B8
RGB	rgb(47, 99, 184)
HSL	hsl(217, 59%, 45%)
HSV	hsv(217, 74%, 72%)
CMYK	cmyk(74.5%, 46.2%, 0%, 27.8%)
CIE-LAB	lab(42.74, 12.62, -49.97)
CIE-LCH	lch(42.74, 51.54, 284.17°)
OKLab	oklab(51.04% -0.0258 -0.1433)
OKLCH	oklch(51.04% 0.146 259.8)
XYZ	xyz(14.2827, 12.9871, 47.0921)
Luminance	0.1299 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F63B8 #B8842F

analogous

#2FA7B8 #2F63B8 #3F2FB8

triadic

#2F63B8 #B82F63 #63B82F

tetradic

#2F63B8 #B82FA7 #B8842F #2FB83F

square

#2F63B8 #B82FA7 #B8842F #2FB83F

split-complementary

#2F63B8 #B83F2F #A7B82F

monochromatic

#162F57 #234987 #2F63B8 #5283D3 #82A6DF

Accessibility & contrast

On white

5.84

#2F63B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#2F63B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F63B8

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F63B8	#FFFFFF	#000000	##FFFFFF
##2F63B8	1.00	5.84	3.60	5.84
#FFFFFF	5.84	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#366CBB

Deuteranopia (green-blind)

#175FB6

Tritanopia (blue-blind)

#007784

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #2f63b8;
/* rgb */ color: rgb(47, 99, 184);
/* oklch */ color: oklch(51.0% 0.146 259.8);

Tailwind

colors: {
  custom: {
    50: '#7a8ece',
    500: '#2f63b8',
    950: '#000000',
  },
}

SCSS

$custom: #2f63b8;
$custom-light: #7a8ece;
$custom-dark: #000000;

JSON

{
  "hex": "#2f63b8",
  "rgb": {
    "r": 47,
    "g": 99,
    "b": 184
  },
  "hsl": {
    "h": 217.226,
    "s": 59.307,
    "l": 45.294
  },
  "oklch": {
    "l": 0.51036,
    "c": 0.14557,
    "h": 259.8
  },
  "luminance": 0.12989
}

Semantic roles & 50–950 ramp

primary

#2F63B8

secondary

#C8AB7B

accent

#A745E2

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #2F63B8

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

Preview Lab → · Contrast checker → · Palette generator →