#3B50BB#3B50BB

#3B50BB is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.9% C 0.170 H 270.3°. Best body text is #FFFFFF at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#3B50BB
RGB	rgb(59, 80, 187)
HSL	hsl(230, 52%, 48%)
HSV	hsv(230, 68%, 73%)
CMYK	cmyk(68.4%, 57.2%, 0%, 26.7%)
CIE-LAB	lab(38.29, 27.74, -58.88)
CIE-LCH	lch(38.29, 65.09, 295.23°)
OKLab	oklab(47.87% 0.0009 -0.1696)
OKLCH	oklch(47.87% 0.17 270.3)
XYZ	xyz(13.6389, 10.2537, 48.2645)
Luminance	0.1026 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B50BB #BBA63B

analogous

#3B90BB #3B50BB #663BBB

triadic

#3B50BB #BB3B50 #50BB3B

tetradic

#3B50BB #BB3B90 #BBA63B #3BBB66

square

#3B50BB #BB3B90 #BBA63B #3BBB66

split-complementary

#3B50BB #BB663B #90BB3B

monochromatic

#1E285E #2C3C8C #3B50BB #6576CE #939FDD

Accessibility & contrast

On white

6.88

#3B50BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#3B50BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B50BB

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B50BB	#FFFFFF	#000000	##FFFFFF
##3B50BB	1.00	6.88	3.05	6.88
#FFFFFF	6.88	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060BF

Deuteranopia (green-blind)

#0055B9

Tritanopia (blue-blind)

#006A7D

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3b50bb;
/* rgb */ color: rgb(59, 80, 187);
/* oklch */ color: oklch(47.9% 0.170 270.3);

Tailwind

colors: {
  custom: {
    50: '#8080d0',
    500: '#3b50bb',
    950: '#000000',
  },
}

SCSS

$custom: #3b50bb;
$custom-light: #8080d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3b50bb",
  "rgb": {
    "r": 59,
    "g": 80,
    "b": 187
  },
  "hsl": {
    "h": 230.156,
    "s": 52.033,
    "l": 48.235
  },
  "oklch": {
    "l": 0.4787,
    "c": 0.16957,
    "h": 270.3
  },
  "luminance": 0.10255
}

Semantic roles & 50–950 ramp

primary

#3B50BB

secondary

#C8BE8A

accent

#C44CDB

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3B50BB

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

Preview Lab → · Contrast checker → · Palette generator →