#4140BE#4140BE

#4140BE is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.6% C 0.191 H 276.0°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#4140BE
RGB	rgb(65, 64, 190)
HSL	hsl(240, 50%, 50%)
HSV	hsv(240, 66%, 75%)
CMYK	cmyk(65.8%, 66.3%, 0%, 25.5%)
CIE-LAB	lab(35.02, 39.71, -65.97)
CIE-LCH	lch(35.02, 77.00, 301.04°)
OKLab	oklab(45.63% 0.0201 -0.1904)
OKLCH	oklch(45.63% 0.191 276)
XYZ	xyz(13.3046, 8.5072, 49.6461)
Luminance	0.0851 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.31

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4140BE #BDBE40

analogous

#407EBE #4140BE #8040BE

triadic

#4140BE #BE4140 #40BE41

tetradic

#4140BE #BE407E #BDBE40 #40BE80

square

#4140BE #BE407E #BDBE40 #40BE80

split-complementary

#4140BE #BE8040 #7EBE40

monochromatic

#222162 #313190 #4140BE #6E6DCE #9C9BDD

Accessibility & contrast

On white

7.77

#4140BE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#4140BE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4140BE

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4140BE	#FFFFFF	#000000	##FFFFFF
##4140BE	1.00	7.77	2.70	7.77
#FFFFFF	7.77	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C2

Deuteranopia (green-blind)

#004DBC

Tritanopia (blue-blind)

#006179

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #4140be;
/* rgb */ color: rgb(65, 64, 190);
/* oklch */ color: oklch(45.6% 0.191 276.0);

Tailwind

colors: {
  custom: {
    50: '#8575d3',
    500: '#4140be',
    950: '#000000',
  },
}

SCSS

$custom: #4140be;
$custom-light: #8575d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4140be",
  "rgb": {
    "r": 65,
    "g": 64,
    "b": 190
  },
  "hsl": {
    "h": 240.476,
    "s": 49.606,
    "l": 49.804
  },
  "oklch": {
    "l": 0.45628,
    "c": 0.19143,
    "h": 276
  },
  "luminance": 0.08508
}

Semantic roles & 50–950 ramp

primary

#4140BE

secondary

#C9C990

accent

#D94FD8

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #4140BE

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

Preview Lab → · Contrast checker → · Palette generator →