#3B5BB9#3B5BB9

#3B5BB9 is a mid, vivid blue. Relative luminance 0.119; OKLCH L 49.9% C 0.153 H 266.7°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#3B5BB9
RGB	rgb(59, 91, 185)
HSL	hsl(225, 52%, 48%)
HSV	hsv(225, 68%, 73%)
CMYK	cmyk(68.1%, 50.8%, 0%, 27.5%)
CIE-LAB	lab(41.08, 19.90, -53.21)
CIE-LCH	lch(41.08, 56.80, 290.50°)
OKLab	oklab(49.92% -0.0089 -0.1527)
OKLCH	oklch(49.92% 0.153 266.7)
XYZ	xyz(14.2986, 11.9134, 47.4355)
Luminance	0.1192 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B5BB9 #B9993B

analogous

#3B9AB9 #3B5BB9 #5A3BB9

triadic

#3B5BB9 #B93B5B #5BB93B

tetradic

#3B5BB9 #B93B9A #B9993B #3BB95A

square

#3B5BB9 #B93B9A #B9993B #3BB95A

split-complementary

#3B5BB9 #B95A3B #9AB93B

monochromatic

#1D2D5C #2C448B #3B5BB9 #647FCD #92A5DC

Accessibility & contrast

On white

6.21

#3B5BB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#3B5BB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B5BB9

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B5BB9	#FFFFFF	#000000	##FFFFFF
##3B5BB9	1.00	6.21	3.38	6.21
#FFFFFF	6.21	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2467BC

Deuteranopia (green-blind)

#005BB7

Tritanopia (blue-blind)

#007181

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3b5bb9;
/* rgb */ color: rgb(59, 91, 185);
/* oklch */ color: oklch(49.9% 0.153 266.7);

Tailwind

colors: {
  custom: {
    50: '#7f88cf',
    500: '#3b5bb9',
    950: '#000000',
  },
}

SCSS

$custom: #3b5bb9;
$custom-light: #7f88cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3b5bb9",
  "rgb": {
    "r": 59,
    "g": 91,
    "b": 185
  },
  "hsl": {
    "h": 224.762,
    "s": 51.639,
    "l": 47.843
  },
  "oklch": {
    "l": 0.49923,
    "c": 0.15297,
    "h": 266.7
  },
  "luminance": 0.11915
}

Semantic roles & 50–950 ramp

primary

#3B5BB9

secondary

#C7B788

accent

#B74DDB

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3B5BB9

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

Preview Lab → · Contrast checker → · Palette generator →