#2F63B1#2F63B1

#2F63B1 is a mid, vivid blue. Relative luminance 0.127; OKLCH L 50.6% C 0.136 H 258.5°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#2F63B1
RGB	rgb(47, 99, 177)
HSL	hsl(216, 58%, 44%)
HSV	hsv(216, 73%, 69%)
CMYK	cmyk(73.4%, 44.1%, 0%, 30.6%)
CIE-LAB	lab(42.31, 9.98, -46.57)
CIE-LCH	lch(42.31, 47.62, 282.09°)
OKLab	oklab(50.56% -0.0271 -0.1333)
OKLCH	oklch(50.56% 0.136 258.5)
XYZ	xyz(13.5671, 12.7009, 43.3229)
Luminance	0.1270 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F63B1 #B17D2F

analogous

#2FA4B1 #2F63B1 #3C2FB1

triadic

#2F63B1 #B12F63 #63B12F

tetradic

#2F63B1 #B12FA4 #B17D2F #2FB13C

square

#2F63B1 #B12FA4 #B17D2F #2FB13C

split-complementary

#2F63B1 #B13C2F #A4B12F

monochromatic

#152D50 #224881 #2F63B1 #4D82D0 #7EA4DD

Accessibility & contrast

On white

5.93

#2F63B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#2F63B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2F63B1

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F63B1	#FFFFFF	#000000	##FFFFFF
##2F63B1	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C6AB4

Deuteranopia (green-blind)

#245EAF

Tritanopia (blue-blind)

#007581

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #2f63b1;
/* rgb */ color: rgb(47, 99, 177);
/* oklch */ color: oklch(50.6% 0.136 258.5);

Tailwind

colors: {
  custom: {
    50: '#798ec9',
    500: '#2f63b1',
    950: '#000000',
  },
}

SCSS

$custom: #2f63b1;
$custom-light: #798ec9;
$custom-dark: #000000;

JSON

{
  "hex": "#2f63b1",
  "rgb": {
    "r": 47,
    "g": 99,
    "b": 177
  },
  "hsl": {
    "h": 216,
    "s": 58.036,
    "l": 43.922
  },
  "oklch": {
    "l": 0.50561,
    "c": 0.13601,
    "h": 258.5
  },
  "luminance": 0.12702
}

Semantic roles & 50–950 ramp

primary

#2F63B1

secondary

#C5A676

accent

#A347E1

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2F63B1

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

Preview Lab → · Contrast checker → · Palette generator →