#3B54CB#3B54CB

#3B54CB is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.9% C 0.186 H 269.4°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#3B54CB
RGB	rgb(59, 84, 203)
HSL	hsl(230, 58%, 51%)
HSV	hsv(230, 71%, 80%)
CMYK	cmyk(70.9%, 58.6%, 0%, 20.4%)
CIE-LAB	lab(40.54, 30.92, -64.54)
CIE-LCH	lch(40.54, 71.56, 295.60°)
OKLab	oklab(49.93% -0.002 -0.1861)
OKLCH	oklch(49.93% 0.186 269.4)
XYZ	xyz(15.7498, 11.5807, 57.8936)
Luminance	0.1158 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B54CB #CBB23B

analogous

#3B9CCB #3B54CB #6A3BCB

triadic

#3B54CB #CB3B54 #54CB3B

tetradic

#3B54CB #CB3B9C #CBB23B #3BCB6A

square

#3B54CB #CB3B9C #CBB23B #3BCB6A

split-complementary

#3B54CB #CB6A3B #9CCB3B

monochromatic

#1D2B6E #2A3E9F #3B54CB #6B7ED8 #9CA8E5

Accessibility & contrast

On white

6.33

#3B54CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#3B54CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B54CB

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B54CB	#FFFFFF	#000000	##FFFFFF
##3B54CB	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066CF

Deuteranopia (green-blind)

#0059C9

Tritanopia (blue-blind)

#007287

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3b54cb;
/* rgb */ color: rgb(59, 84, 203);
/* oklch */ color: oklch(49.9% 0.186 269.4);

Tailwind

colors: {
  custom: {
    50: '#8383dc',
    500: '#3b54cb',
    950: '#000000',
  },
}

SCSS

$custom: #3b54cb;
$custom-light: #8383dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3b54cb",
  "rgb": {
    "r": 59,
    "g": 84,
    "b": 203
  },
  "hsl": {
    "h": 229.583,
    "s": 58.065,
    "l": 51.373
  },
  "oklch": {
    "l": 0.49931,
    "c": 0.18616,
    "h": 269.4
  },
  "luminance": 0.11582
}

Semantic roles & 50–950 ramp

primary

#3B54CB

secondary

#D1C691

accent

#C647E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3B54CB

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

Preview Lab → · Contrast checker → · Palette generator →