#3B5FBB#3B5FBB

#3B5FBB is a mid, vivid blue. Relative luminance 0.127; OKLCH L 50.9% C 0.151 H 265.3°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#3B5FBB
RGB	rgb(59, 95, 187)
HSL	hsl(223, 52%, 48%)
HSV	hsv(223, 68%, 73%)
CMYK	cmyk(68.4%, 49.2%, 0%, 26.7%)
CIE-LAB	lab(42.31, 18.04, -52.39)
CIE-LCH	lch(42.31, 55.41, 289.00°)
OKLab	oklab(50.9% -0.0123 -0.1502)
OKLCH	oklch(50.9% 0.151 265.3)
XYZ	xyz(14.8623, 12.7006, 48.6723)
Luminance	0.1270 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B5FBB #BB973B

analogous

#3B9FBB #3B5FBB #573BBB

triadic

#3B5FBB #BB3B5F #5FBB3B

tetradic

#3B5FBB #BB3B9F #BB973B #3BBB57

square

#3B5FBB #BB3B9F #BB973B #3BBB57

split-complementary

#3B5FBB #BB573B #9FBB3B

monochromatic

#1E305E #2C478C #3B5FBB #6583CE #93A8DD

Accessibility & contrast

On white

5.93

#3B5FBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#3B5FBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B5FBB

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B5FBB	#FFFFFF	#000000	##FFFFFF
##3B5FBB	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)

#2C6ABE

Deuteranopia (green-blind)

#045EB9

Tritanopia (blue-blind)

#007584

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3b5fbb;
/* rgb */ color: rgb(59, 95, 187);
/* oklch */ color: oklch(50.9% 0.151 265.3);

Tailwind

colors: {
  custom: {
    50: '#808bd0',
    500: '#3b5fbb',
    950: '#000000',
  },
}

SCSS

$custom: #3b5fbb;
$custom-light: #808bd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3b5fbb",
  "rgb": {
    "r": 59,
    "g": 95,
    "b": 187
  },
  "hsl": {
    "h": 223.125,
    "s": 52.033,
    "l": 48.235
  },
  "oklch": {
    "l": 0.50902,
    "c": 0.15075,
    "h": 265.3
  },
  "luminance": 0.12702
}

Semantic roles & 50–950 ramp

primary

#3B5FBB

secondary

#C8B78A

accent

#B34CDB

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3B5FBB

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

Preview Lab → · Contrast checker → · Palette generator →