#3B53BB#3B53BB

#3B53BB is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.5% C 0.166 H 269.4°. Best body text is #FFFFFF at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#3B53BB
RGB	rgb(59, 83, 187)
HSL	hsl(229, 52%, 48%)
HSV	hsv(229, 68%, 73%)
CMYK	cmyk(68.4%, 55.6%, 0%, 26.7%)
CIE-LAB	lab(39.08, 25.80, -57.62)
CIE-LCH	lch(39.08, 63.13, 294.13°)
OKLab	oklab(48.46% -0.0016 -0.1658)
OKLCH	oklch(48.46% 0.166 269.4)
XYZ	xyz(13.8635, 10.7028, 48.3393)
Luminance	0.1070 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B53BB #BBA33B

analogous

#3B93BB #3B53BB #633BBB

triadic

#3B53BB #BB3B53 #53BB3B

tetradic

#3B53BB #BB3B93 #BBA33B #3BBB63

square

#3B53BB #BB3B93 #BBA33B #3BBB63

split-complementary

#3B53BB #BB633B #93BB3B

monochromatic

#1E2A5E #2C3E8C #3B53BB #6579CE #93A1DD

Accessibility & contrast

On white

6.69

#3B53BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#3B53BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B53BB

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B53BB	#FFFFFF	#000000	##FFFFFF
##3B53BB	1.00	6.69	3.14	6.69
#FFFFFF	6.69	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062BF

Deuteranopia (green-blind)

#0056B9

Tritanopia (blue-blind)

#006C7F

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3b53bb;
/* rgb */ color: rgb(59, 83, 187);
/* oklch */ color: oklch(48.5% 0.166 269.4);

Tailwind

colors: {
  custom: {
    50: '#8083d0',
    500: '#3b53bb',
    950: '#000000',
  },
}

SCSS

$custom: #3b53bb;
$custom-light: #8083d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3b53bb",
  "rgb": {
    "r": 59,
    "g": 83,
    "b": 187
  },
  "hsl": {
    "h": 228.75,
    "s": 52.033,
    "l": 48.235
  },
  "oklch": {
    "l": 0.48455,
    "c": 0.16581,
    "h": 269.4
  },
  "luminance": 0.10704
}

Semantic roles & 50–950 ramp

primary

#3B53BB

secondary

#C8BC8A

accent

#C14CDB

background

#F8F7FC

surface

#F0EEF9

border

#CBC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3B53BB

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

Preview Lab → · Contrast checker → · Palette generator →