#3B5BB2#3B5BB2

#3B5BB2 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.4% C 0.143 H 266.1°. Best body text is #FFFFFF at 6.32:1 contrast (WCAG AA passes).

Color values

HEX	#3B5BB2
RGB	rgb(59, 91, 178)
HSL	hsl(224, 50%, 46%)
HSV	hsv(224, 67%, 70%)
CMYK	cmyk(66.9%, 48.9%, 0%, 30.2%)
CIE-LAB	lab(40.61, 17.35, -49.85)
CIE-LCH	lch(40.61, 52.78, 289.19°)
OKLab	oklab(49.42% -0.0097 -0.1428)
OKLCH	oklch(49.42% 0.143 266.1)
XYZ	xyz(13.5778, 11.6250, 43.6392)
Luminance	0.1163 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B5BB2 #B2923B

analogous

#3B97B2 #3B5BB2 #573BB2

triadic

#3B5BB2 #B23B5B #5BB23B

tetradic

#3B5BB2 #B23B97 #B2923B #3BB257

square

#3B5BB2 #B23B97 #B2923B #3BB257

split-complementary

#3B5BB2 #B2573B #97B23B

monochromatic

#1D2C56 #2C4484 #3B5BB2 #607DCA #8EA2DA

Accessibility & contrast

On white

6.32

#3B5BB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#3B5BB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B5BB2

6.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B5BB2	#FFFFFF	#000000	##FFFFFF
##3B5BB2	1.00	6.32	3.33	6.32
#FFFFFF	6.32	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C65B5

Deuteranopia (green-blind)

#0F5BB0

Tritanopia (blue-blind)

#006F7E

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3b5bb2;
/* rgb */ color: rgb(59, 91, 178);
/* oklch */ color: oklch(49.4% 0.143 266.1);

Tailwind

colors: {
  custom: {
    50: '#7e88ca',
    500: '#3b5bb2',
    950: '#000000',
  },
}

SCSS

$custom: #3b5bb2;
$custom-light: #7e88ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3b5bb2",
  "rgb": {
    "r": 59,
    "g": 91,
    "b": 178
  },
  "hsl": {
    "h": 223.866,
    "s": 50.211,
    "l": 46.471
  },
  "oklch": {
    "l": 0.49421,
    "c": 0.14316,
    "h": 266.1
  },
  "luminance": 0.11626
}

Semantic roles & 50–950 ramp

primary

#3B5BB2

secondary

#C4B385

accent

#B44EDA

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3B5BB2

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

Preview Lab → · Contrast checker → · Palette generator →