#3B54C9#3B54C9

#3B54C9 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.8% C 0.183 H 269.4°. Best body text is #FFFFFF at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#3B54C9
RGB	rgb(59, 84, 201)
HSL	hsl(229, 57%, 51%)
HSV	hsv(229, 71%, 79%)
CMYK	cmyk(70.6%, 58.2%, 0%, 21.2%)
CIE-LAB	lab(40.39, 30.20, -63.64)
CIE-LCH	lch(40.39, 70.44, 295.39°)
OKLab	oklab(49.77% -0.002 -0.1835)
OKLCH	oklch(49.77% 0.184 269.4)
XYZ	xyz(15.5130, 11.4859, 56.6465)
Luminance	0.1149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B54C9 #C9B03B

analogous

#3B9BC9 #3B54C9 #693BC9

triadic

#3B54C9 #C93B54 #54C93B

tetradic

#3B54C9 #C93B9B #C9B03B #3BC969

square

#3B54C9 #C93B9B #C9B03B #3BC969

split-complementary

#3B54C9 #C9693B #9BC93B

monochromatic

#1E2B6C #2B3F9C #3B54C9 #6B7ED6 #9BA8E3

Accessibility & contrast

On white

6.37

#3B54C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#3B54C9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B54C9

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B54C9	#FFFFFF	#000000	##FFFFFF
##3B54C9	1.00	6.37	3.30	6.37
#FFFFFF	6.37	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066CD

Deuteranopia (green-blind)

#0059C7

Tritanopia (blue-blind)

#007186

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3b54c9;
/* rgb */ color: rgb(59, 84, 201);
/* oklch */ color: oklch(49.8% 0.183 269.4);

Tailwind

colors: {
  custom: {
    50: '#8383da',
    500: '#3b54c9',
    950: '#000000',
  },
}

SCSS

$custom: #3b54c9;
$custom-light: #8383da;
$custom-dark: #000000;

JSON

{
  "hex": "#3b54c9",
  "rgb": {
    "r": 59,
    "g": 84,
    "b": 201
  },
  "hsl": {
    "h": 229.437,
    "s": 56.8,
    "l": 50.98
  },
  "oklch": {
    "l": 0.49768,
    "c": 0.1835,
    "h": 269.4
  },
  "luminance": 0.11488
}

Semantic roles & 50–950 ramp

primary

#3B54C9

secondary

#CFC490

accent

#C548E0

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3B54C9

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

Preview Lab → · Contrast checker → · Palette generator →