#3B5BBF#3B5BBF

#3B5BBF is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.4% C 0.161 H 267.1°. Best body text is #FFFFFF at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#3B5BBF
RGB	rgb(59, 91, 191)
HSL	hsl(225, 53%, 49%)
HSV	hsv(225, 69%, 75%)
CMYK	cmyk(69.1%, 52.4%, 0%, 25.1%)
CIE-LAB	lab(41.49, 22.08, -56.04)
CIE-LCH	lch(41.49, 60.24, 291.50°)
OKLab	oklab(50.36% -0.0083 -0.1611)
OKLCH	oklch(50.36% 0.161 267.1)
XYZ	xyz(14.9454, 12.1721, 50.8419)
Luminance	0.1217 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B5BBF #BF9F3B

analogous

#3B9DBF #3B5BBF #5D3BBF

triadic

#3B5BBF #BF3B5B #5BBF3B

tetradic

#3B5BBF #BF3B9D #BF9F3B #3BBF5D

square

#3B5BBF #BF3B9D #BF9F3B #3BBF5D

split-complementary

#3B5BBF #BF5D3B #9DBF3B

monochromatic

#1E2E61 #2D4590 #3B5BBF #6781D0 #96A7DF

Accessibility & contrast

On white

6.11

#3B5BBF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#3B5BBF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B5BBF

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B5BBF	#FFFFFF	#000000	##FFFFFF
##3B5BBF	1.00	6.11	3.43	6.11
#FFFFFF	6.11	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A68C3

Deuteranopia (green-blind)

#005CBD

Tritanopia (blue-blind)

#007384

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3b5bbf;
/* rgb */ color: rgb(59, 91, 191);
/* oklch */ color: oklch(50.4% 0.161 267.1);

Tailwind

colors: {
  custom: {
    50: '#8188d3',
    500: '#3b5bbf',
    950: '#000000',
  },
}

SCSS

$custom: #3b5bbf;
$custom-light: #8188d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3b5bbf",
  "rgb": {
    "r": 59,
    "g": 91,
    "b": 191
  },
  "hsl": {
    "h": 225.455,
    "s": 52.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.50364,
    "c": 0.16128,
    "h": 267.1
  },
  "luminance": 0.12174
}

Semantic roles & 50–950 ramp

primary

#3B5BBF

secondary

#CABB8C

accent

#B94CDC

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3B5BBF

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

Preview Lab → · Contrast checker → · Palette generator →