#2B63B5#2B63B5

#2B63B5 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 50.7% C 0.143 H 258.2°. Best body text is #FFFFFF at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#2B63B5
RGB	rgb(43, 99, 181)
HSL	hsl(216, 62%, 44%)
HSV	hsv(216, 76%, 71%)
CMYK	cmyk(76.2%, 45.3%, 0%, 29%)
CIE-LAB	lab(42.42, 10.97, -48.75)
CIE-LCH	lch(42.42, 49.96, 282.68°)
OKLab	oklab(50.69% -0.0291 -0.1397)
OKLCH	oklch(50.69% 0.143 258.2)
XYZ	xyz(13.7955, 12.7719, 45.4453)
Luminance	0.1277 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B63B5 #B57D2B

analogous

#2BA8B5 #2B63B5 #382BB5

triadic

#2B63B5 #B52B63 #63B52B

tetradic

#2B63B5 #B52BA8 #B57D2B #2BB538

square

#2B63B5 #B52BA8 #B57D2B #2BB538

split-complementary

#2B63B5 #B5382B #A8B52B

monochromatic

#142D52 #1F4884 #2B63B5 #4982D4 #7BA4E0

Accessibility & contrast

On white

5.91

#2B63B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#2B63B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B63B5

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B63B5	#FFFFFF	#000000	##FFFFFF
##2B63B5	1.00	5.91	3.55	5.91
#FFFFFF	5.91	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#396BB8

Deuteranopia (green-blind)

#1B5EB3

Tritanopia (blue-blind)

#007683

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #2b63b5;
/* rgb */ color: rgb(43, 99, 181);
/* oklch */ color: oklch(50.7% 0.143 258.2);

Tailwind

colors: {
  custom: {
    50: '#788ecc',
    500: '#2b63b5',
    950: '#000000',
  },
}

SCSS

$custom: #2b63b5;
$custom-light: #788ecc;
$custom-dark: #000000;

JSON

{
  "hex": "#2b63b5",
  "rgb": {
    "r": 43,
    "g": 99,
    "b": 181
  },
  "hsl": {
    "h": 215.652,
    "s": 61.607,
    "l": 43.922
  },
  "oklch": {
    "l": 0.50685,
    "c": 0.14272,
    "h": 258.2
  },
  "luminance": 0.12773
}

Semantic roles & 50–950 ramp

primary

#2B63B5

secondary

#C8A674

accent

#A343E5

background

#F7F8FC

surface

#EEF0F9

border

#C9CBD2

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2B63B5

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

Preview Lab → · Contrast checker → · Palette generator →