#3F5ABB#3F5ABB

#3F5ABB is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.1% C 0.156 H 268.5°. Best body text is #FFFFFF at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#3F5ABB
RGB	rgb(63, 90, 187)
HSL	hsl(227, 50%, 49%)
HSV	hsv(227, 66%, 73%)
CMYK	cmyk(66.3%, 51.9%, 0%, 26.7%)
CIE-LAB	lab(41.15, 21.90, -54.26)
CIE-LCH	lch(41.15, 58.51, 291.99°)
OKLab	oklab(50.07% -0.004 -0.1557)
OKLCH	oklch(50.07% 0.156 268.5)
XYZ	xyz(14.6726, 11.9556, 48.5385)
Luminance	0.1196 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5ABB #BBA03F

analogous

#3F98BB #3F5ABB #623FBB

triadic

#3F5ABB #BB3F5A #5ABB3F

tetradic

#3F5ABB #BB3F98 #BBA03F #3FBB62

square

#3F5ABB #BB3F98 #BBA03F #3FBB62

split-complementary

#3F5ABB #BB623F #98BB3F

monochromatic

#202E5F #30448D #3F5ABB #6A80CD #98A7DC

Accessibility & contrast

On white

6.19

#3F5ABB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#3F5ABB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5ABB

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5ABB	#FFFFFF	#000000	##FFFFFF
##3F5ABB	1.00	6.19	3.39	6.19
#FFFFFF	6.19	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F67BE

Deuteranopia (green-blind)

#005CB9

Tritanopia (blue-blind)

#007182

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3f5abb;
/* rgb */ color: rgb(63, 90, 187);
/* oklch */ color: oklch(50.1% 0.156 268.5);

Tailwind

colors: {
  custom: {
    50: '#8288d0',
    500: '#3f5abb',
    950: '#000000',
  },
}

SCSS

$custom: #3f5abb;
$custom-light: #8288d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5abb",
  "rgb": {
    "r": 63,
    "g": 90,
    "b": 187
  },
  "hsl": {
    "h": 226.935,
    "s": 49.6,
    "l": 49.02
  },
  "oklch": {
    "l": 0.50072,
    "c": 0.15578,
    "h": 268.5
  },
  "luminance": 0.11957
}

Semantic roles & 50–950 ramp

primary

#3F5ABB

secondary

#C8BB8E

accent

#BB4FD9

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #3F5ABB

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

Preview Lab → · Contrast checker → · Palette generator →