#3B5BBB#3B5BBB

#3B5BBB is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.1% C 0.156 H 266.8°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#3B5BBB
RGB	rgb(59, 91, 187)
HSL	hsl(225, 52%, 48%)
HSV	hsv(225, 68%, 73%)
CMYK	cmyk(68.4%, 51.3%, 0%, 26.7%)
CIE-LAB	lab(41.21, 20.62, -54.16)
CIE-LCH	lch(41.21, 57.95, 290.85°)
OKLab	oklab(50.07% -0.0086 -0.1555)
OKLCH	oklch(50.07% 0.156 266.8)
XYZ	xyz(14.5112, 11.9984, 48.5552)
Luminance	0.1200 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B5BBB #BB9B3B

analogous

#3B9BBB #3B5BBB #5B3BBB

triadic

#3B5BBB #BB3B5B #5BBB3B

tetradic

#3B5BBB #BB3B9B #BB9B3B #3BBB5B

square

#3B5BBB #BB3B9B #BB9B3B #3BBB5B

split-complementary

#3B5BBB #BB5B3B #9BBB3B

monochromatic

#1E2E5E #2C448C #3B5BBB #657FCE #93A6DD

Accessibility & contrast

On white

6.18

#3B5BBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#3B5BBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B5BBB

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B5BBB	#FFFFFF	#000000	##FFFFFF
##3B5BBB	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2167BE

Deuteranopia (green-blind)

#005CB9

Tritanopia (blue-blind)

#007282

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3b5bbb;
/* rgb */ color: rgb(59, 91, 187);
/* oklch */ color: oklch(50.1% 0.156 266.8);

Tailwind

colors: {
  custom: {
    50: '#8088d0',
    500: '#3b5bbb',
    950: '#000000',
  },
}

SCSS

$custom: #3b5bbb;
$custom-light: #8088d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3b5bbb",
  "rgb": {
    "r": 59,
    "g": 91,
    "b": 187
  },
  "hsl": {
    "h": 225,
    "s": 52.033,
    "l": 48.235
  },
  "oklch": {
    "l": 0.50069,
    "c": 0.15575,
    "h": 266.8
  },
  "luminance": 0.12
}

Semantic roles & 50–950 ramp

primary

#3B5BBB

secondary

#C8B98A

accent

#B84CDB

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3B5BBB

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

Preview Lab → · Contrast checker → · Palette generator →