#3B58BB#3B58BB

#3B58BB is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.5% C 0.160 H 267.9°. Best body text is #FFFFFF at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#3B58BB
RGB	rgb(59, 88, 187)
HSL	hsl(226, 52%, 48%)
HSV	hsv(226, 68%, 73%)
CMYK	cmyk(68.4%, 52.9%, 0%, 26.7%)
CIE-LAB	lab(40.40, 22.57, -55.46)
CIE-LCH	lch(40.40, 59.88, 292.14°)
OKLab	oklab(49.46% -0.006 -0.1594)
OKLCH	oklch(49.46% 0.16 267.9)
XYZ	xyz(14.2599, 11.4957, 48.4715)
Luminance	0.1150 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B58BB #BB9E3B

analogous

#3B98BB #3B58BB #5E3BBB

triadic

#3B58BB #BB3B58 #58BB3B

tetradic

#3B58BB #BB3B98 #BB9E3B #3BBB5E

square

#3B58BB #BB3B98 #BB9E3B #3BBB5E

split-complementary

#3B58BB #BB5E3B #98BB3B

monochromatic

#1E2C5E #2C428C #3B58BB #657DCE #93A4DD

Accessibility & contrast

On white

6.36

#3B58BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#3B58BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B58BB

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B58BB	#FFFFFF	#000000	##FFFFFF
##3B58BB	1.00	6.36	3.30	6.36
#FFFFFF	6.36	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1565BE

Deuteranopia (green-blind)

#005AB9

Tritanopia (blue-blind)

#007081

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3b58bb;
/* rgb */ color: rgb(59, 88, 187);
/* oklch */ color: oklch(49.5% 0.160 267.9);

Tailwind

colors: {
  custom: {
    50: '#8086d0',
    500: '#3b58bb',
    950: '#000000',
  },
}

SCSS

$custom: #3b58bb;
$custom-light: #8086d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3b58bb",
  "rgb": {
    "r": 59,
    "g": 88,
    "b": 187
  },
  "hsl": {
    "h": 226.406,
    "s": 52.033,
    "l": 48.235
  },
  "oklch": {
    "l": 0.49455,
    "c": 0.15952,
    "h": 267.9
  },
  "luminance": 0.11497
}

Semantic roles & 50–950 ramp

primary

#3B58BB

secondary

#C8BA8A

accent

#BB4CDB

background

#F8F8FC

surface

#F0EFF9

border

#CBCAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3B58BB

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

Preview Lab → · Contrast checker → · Palette generator →