#2F63B5#2F63B5

#2F63B5 is a mid, vivid blue. Relative luminance 0.129; OKLCH L 50.8% C 0.141 H 259.3°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#2F63B5
RGB	rgb(47, 99, 181)
HSL	hsl(217, 59%, 45%)
HSV	hsv(217, 74%, 71%)
CMYK	cmyk(74%, 45.3%, 0%, 29%)
CIE-LAB	lab(42.56, 11.48, -48.52)
CIE-LCH	lch(42.56, 49.86, 283.32°)
OKLab	oklab(50.83% -0.0264 -0.139)
OKLCH	oklch(50.83% 0.141 259.3)
XYZ	xyz(13.9716, 12.8627, 45.4535)
Luminance	0.1286 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F63B5 #B5812F

analogous

#2FA6B5 #2F63B5 #3E2FB5

triadic

#2F63B5 #B52F63 #63B52F

tetradic

#2F63B5 #B52FA6 #B5812F #2FB53E

square

#2F63B5 #B52FA6 #B5812F #2FB53E

split-complementary

#2F63B5 #B53E2F #A6B52F

monochromatic

#162E54 #224884 #2F63B5 #5082D1 #80A5DE

Accessibility & contrast

On white

5.88

#2F63B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#2F63B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F63B5

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F63B5	#FFFFFF	#000000	##FFFFFF
##2F63B5	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#396BB8

Deuteranopia (green-blind)

#1D5FB3

Tritanopia (blue-blind)

#007683

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #2f63b5;
/* rgb */ color: rgb(47, 99, 181);
/* oklch */ color: oklch(50.8% 0.141 259.3);

Tailwind

colors: {
  custom: {
    50: '#798ecc',
    500: '#2f63b5',
    950: '#000000',
  },
}

SCSS

$custom: #2f63b5;
$custom-light: #798ecc;
$custom-dark: #000000;

JSON

{
  "hex": "#2f63b5",
  "rgb": {
    "r": 47,
    "g": 99,
    "b": 181
  },
  "hsl": {
    "h": 216.716,
    "s": 58.772,
    "l": 44.706
  },
  "oklch": {
    "l": 0.50831,
    "c": 0.14147,
    "h": 259.3
  },
  "luminance": 0.12864
}

Semantic roles & 50–950 ramp

primary

#2F63B5

secondary

#C7A979

accent

#A546E2

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2F63B5

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

Preview Lab → · Contrast checker → · Palette generator →