#2B63DB#2B63DB

#2B63DB is a mid, vivid blue. Relative luminance 0.146; OKLCH L 53.5% C 0.193 H 262.8°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#2B63DB
RGB	rgb(43, 99, 219)
HSL	hsl(221, 71%, 51%)
HSV	hsv(221, 80%, 86%)
CMYK	cmyk(80.4%, 54.8%, 0%, 14.1%)
CIE-LAB	lab(45.01, 25.42, -66.47)
CIE-LCH	lch(45.01, 71.17, 290.93°)
OKLab	oklab(53.49% -0.0242 -0.1919)
OKLCH	oklch(53.49% 0.193 262.8)
XYZ	xyz(18.2397, 14.5496, 68.8511)
Luminance	0.1455 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B63DB #DBA32B

analogous

#2BBBDB #2B63DB #4B2BDB

triadic

#2B63DB #DB2B63 #63DB2B

tetradic

#2B63DB #DB2BBB #DBA32B #2BDB4B

square

#2B63DB #DB2BBB #DBA32B #2BDB4B

split-complementary

#2B63DB #DB4B2B #BBDB2B

monochromatic

#143477 #1D4AAC #2B63DB #5F89E4 #94B0ED

Accessibility & contrast

On white

5.37

#2B63DB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#2B63DB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B63DB

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B63DB	#FFFFFF	#000000	##FFFFFF
##2B63DB	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0073DF

Deuteranopia (green-blind)

#0063D9

Tritanopia (blue-blind)

#008195

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #2b63db;
/* rgb */ color: rgb(43, 99, 219);
/* oklch */ color: oklch(53.5% 0.193 262.8);

Tailwind

colors: {
  custom: {
    50: '#818ee7',
    500: '#2b63db',
    950: '#000000',
  },
}

SCSS

$custom: #2b63db;
$custom-light: #818ee7;
$custom-dark: #000000;

JSON

{
  "hex": "#2b63db",
  "rgb": {
    "r": 43,
    "g": 99,
    "b": 219
  },
  "hsl": {
    "h": 220.909,
    "s": 70.968,
    "l": 51.373
  },
  "oklch": {
    "l": 0.53492,
    "c": 0.1934,
    "h": 262.8
  },
  "luminance": 0.14552
}

Semantic roles & 50–950 ramp

primary

#2B63DB

secondary

#D8BF8A

accent

#B53AEE

background

#F8F8FE

surface

#F0F0FD

border

#CBCBD5

text

#0C0C16

muted

#7D7D84

Preview Lab

Preview with #2B63DB

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

Preview Lab → · Contrast checker → · Palette generator →