#2F63B3#2F63B3

#2F63B3 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 50.7% C 0.139 H 258.9°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#2F63B3
RGB	rgb(47, 99, 179)
HSL	hsl(216, 58%, 44%)
HSV	hsv(216, 74%, 70%)
CMYK	cmyk(73.7%, 44.7%, 0%, 29.8%)
CIE-LAB	lab(42.43, 10.73, -47.54)
CIE-LCH	lch(42.43, 48.74, 282.72°)
OKLab	oklab(50.7% -0.0267 -0.1361)
OKLCH	oklch(50.7% 0.139 258.9)
XYZ	xyz(13.7679, 12.7812, 44.3805)
Luminance	0.1278 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F63B3 #B37F2F

analogous

#2FA5B3 #2F63B3 #3D2FB3

triadic

#2F63B3 #B32F63 #63B32F

tetradic

#2F63B3 #B32FA5 #B37F2F #2FB33D

square

#2F63B3 #B32FA5 #B37F2F #2FB33D

split-complementary

#2F63B3 #B33D2F #A5B32F

monochromatic

#162D52 #224883 #2F63B3 #4F82D1 #7FA4DD

Accessibility & contrast

On white

5.90

#2F63B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#2F63B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F63B3

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F63B3	#FFFFFF	#000000	##FFFFFF
##2F63B3	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B6BB6

Deuteranopia (green-blind)

#215FB1

Tritanopia (blue-blind)

#007682

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #2f63b3;
/* rgb */ color: rgb(47, 99, 179);
/* oklch */ color: oklch(50.7% 0.139 258.9);

Tailwind

colors: {
  custom: {
    50: '#798eca',
    500: '#2f63b3',
    950: '#000000',
  },
}

SCSS

$custom: #2f63b3;
$custom-light: #798eca;
$custom-dark: #000000;

JSON

{
  "hex": "#2f63b3",
  "rgb": {
    "r": 47,
    "g": 99,
    "b": 179
  },
  "hsl": {
    "h": 216.364,
    "s": 58.407,
    "l": 44.314
  },
  "oklch": {
    "l": 0.50695,
    "c": 0.13873,
    "h": 258.9
  },
  "luminance": 0.12783
}

Semantic roles & 50–950 ramp

primary

#2F63B3

secondary

#C6A778

accent

#A446E2

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2F63B3

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

Preview Lab → · Contrast checker → · Palette generator →