#4139BE#4139BE

#4139BE is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.5% C 0.199 H 277.2°. Best body text is #FFFFFF at 8.22:1 contrast (WCAG AA passes).

Color values

HEX	#4139BE
RGB	rgb(65, 57, 190)
HSL	hsl(244, 54%, 48%)
HSV	hsv(244, 70%, 75%)
CMYK	cmyk(65.8%, 70%, 0%, 25.5%)
CIE-LAB	lab(33.49, 43.85, -68.48)
CIE-LCH	lch(33.49, 81.31, 302.64°)
OKLab	oklab(44.53% 0.0251 -0.1977)
OKLCH	oklch(44.53% 0.199 277.2)
XYZ	xyz(12.9343, 7.7667, 49.5227)
Luminance	0.0777 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4139BE #B6BE39

analogous

#3973BE #4139BE #8339BE

triadic

#4139BE #BE4139 #39BE41

tetradic

#4139BE #BE3973 #B6BE39 #39BE83

square

#4139BE #BE3973 #B6BE39 #39BE83

split-complementary

#4139BE #BE8339 #73BE39

monochromatic

#211D60 #312B8F #4139BE #6A64D0 #9793DF

Accessibility & contrast

On white

8.22

#4139BE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#4139BE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4139BE

8.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4139BE	#FFFFFF	#000000	##FFFFFF
##4139BE	1.00	8.22	2.55	8.22
#FFFFFF	8.22	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C2

Deuteranopia (green-blind)

#0049BC

Tritanopia (blue-blind)

#005D77

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #4139be;
/* rgb */ color: rgb(65, 57, 190);
/* oklch */ color: oklch(44.5% 0.199 277.2);

Tailwind

colors: {
  custom: {
    50: '#8571d3',
    500: '#4139be',
    950: '#000000',
  },
}

SCSS

$custom: #4139be;
$custom-light: #8571d3;
$custom-dark: #000000;

JSON

{
  "hex": "#4139be",
  "rgb": {
    "r": 65,
    "g": 57,
    "b": 190
  },
  "hsl": {
    "h": 243.609,
    "s": 53.846,
    "l": 48.431
  },
  "oklch": {
    "l": 0.44528,
    "c": 0.19928,
    "h": 277.2
  },
  "luminance": 0.07768
}

Semantic roles & 50–950 ramp

primary

#4139BE

secondary

#C6CA89

accent

#DD4BD4

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #4139BE

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

Preview Lab → · Contrast checker → · Palette generator →