#2B63BC#2B63BC

#2B63BC is a mid, vivid blue. Relative luminance 0.131; OKLCH L 51.2% C 0.152 H 259.4°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#2B63BC
RGB	rgb(43, 99, 188)
HSL	hsl(217, 63%, 45%)
HSV	hsv(217, 77%, 74%)
CMYK	cmyk(77.1%, 47.3%, 0%, 26.3%)
CIE-LAB	lab(42.86, 13.64, -52.11)
CIE-LCH	lch(42.86, 53.87, 284.67°)
OKLab	oklab(51.17% -0.0279 -0.1496)
OKLCH	oklch(51.17% 0.152 259.4)
XYZ	xyz(14.5319, 13.0664, 49.3234)
Luminance	0.1307 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B63BC #BC842B

analogous

#2BABBC #2B63BC #3C2BBC

triadic

#2B63BC #BC2B63 #63BC2B

tetradic

#2B63BC #BC2BAB #BC842B #2BBC3C

square

#2B63BC #BC2BAB #BC842B #2BBC3C

split-complementary

#2B63BC #BC3C2B #ABBC2B

monochromatic

#142F58 #20498A #2B63BC #4E83D6 #80A6E2

Accessibility & contrast

On white

5.81

#2B63BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#2B63BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B63BC

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B63BC	#FFFFFF	#000000	##FFFFFF
##2B63BC	1.00	5.81	3.61	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#326CBF

Deuteranopia (green-blind)

#055FBA

Tritanopia (blue-blind)

#007886

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #2b63bc;
/* rgb */ color: rgb(43, 99, 188);
/* oklch */ color: oklch(51.2% 0.152 259.4);

Tailwind

colors: {
  custom: {
    50: '#7a8ed1',
    500: '#2b63bc',
    950: '#000000',
  },
}

SCSS

$custom: #2b63bc;
$custom-light: #7a8ed1;
$custom-dark: #000000;

JSON

{
  "hex": "#2b63bc",
  "rgb": {
    "r": 43,
    "g": 99,
    "b": 188
  },
  "hsl": {
    "h": 216.828,
    "s": 62.771,
    "l": 45.294
  },
  "oklch": {
    "l": 0.51172,
    "c": 0.15221,
    "h": 259.4
  },
  "luminance": 0.13068
}

Semantic roles & 50–950 ramp

primary

#2B63BC

secondary

#CBAB78

accent

#A742E6

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #2B63BC

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

Preview Lab → · Contrast checker → · Palette generator →