#4139BD#4139BD

#4139BD is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.4% C 0.198 H 277.3°. Best body text is #FFFFFF at 8.25:1 contrast (WCAG AA passes).

Color values

HEX	#4139BD
RGB	rgb(65, 57, 189)
HSL	hsl(244, 54%, 48%)
HSV	hsv(244, 70%, 74%)
CMYK	cmyk(65.6%, 69.8%, 0%, 25.9%)
CIE-LAB	lab(33.40, 43.53, -68.04)
CIE-LCH	lch(33.40, 80.77, 302.61°)
OKLab	oklab(44.43% 0.0253 -0.1964)
OKLCH	oklch(44.43% 0.198 277.3)
XYZ	xyz(12.8254, 7.7231, 48.9491)
Luminance	0.0772 (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

#4139BD #B5BD39

analogous

#3973BD #4139BD #8339BD

triadic

#4139BD #BD4139 #39BD41

tetradic

#4139BD #BD3973 #B5BD39 #39BD83

square

#4139BD #BD3973 #B5BD39 #39BD83

split-complementary

#4139BD #BD8339 #73BD39

monochromatic

#211D5F #312B8E #4139BD #6A63D0 #9792DE

Accessibility & contrast

On white

8.25

#4139BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#4139BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4139BD

8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4139BD	#FFFFFF	#000000	##FFFFFF
##4139BD	1.00	8.25	2.54	8.25
#FFFFFF	8.25	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C1

Deuteranopia (green-blind)

#0049BB

Tritanopia (blue-blind)

#005D77

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #4139bd;
/* rgb */ color: rgb(65, 57, 189);
/* oklch */ color: oklch(44.4% 0.198 277.3);

Tailwind

colors: {
  custom: {
    50: '#8571d2',
    500: '#4139bd',
    950: '#000000',
  },
}

SCSS

$custom: #4139bd;
$custom-light: #8571d2;
$custom-dark: #000000;

JSON

{
  "hex": "#4139bd",
  "rgb": {
    "r": 65,
    "g": 57,
    "b": 189
  },
  "hsl": {
    "h": 243.636,
    "s": 53.659,
    "l": 48.235
  },
  "oklch": {
    "l": 0.44433,
    "c": 0.19804,
    "h": 277.3
  },
  "luminance": 0.07724
}

Semantic roles & 50–950 ramp

primary

#4139BD

secondary

#C5C989

accent

#DD4BD4

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #4139BD

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

Preview Lab → · Contrast checker → · Palette generator →