#4139CE#4139CE

#4139CE is a mid, highly saturated blue. Relative luminance 0.085; OKLCH L 46.1% C 0.219 H 275.9°. Best body text is #FFFFFF at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#4139CE
RGB	rgb(65, 57, 206)
HSL	hsl(243, 60%, 52%)
HSV	hsv(243, 72%, 81%)
CMYK	cmyk(68.4%, 72.3%, 0%, 19.2%)
CIE-LAB	lab(35.01, 48.99, -75.32)
CIE-LCH	lch(35.01, 89.85, 303.04°)
OKLab	oklab(46.07% 0.0224 -0.2177)
OKLCH	oklch(46.07% 0.219 275.9)
XYZ	xyz(14.7800, 8.5050, 59.2433)
Luminance	0.0851 (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

#4139CE #C6CE39

analogous

#397CCE #4139CE #8B39CE

triadic

#4139CE #CE4139 #39CE41

tetradic

#4139CE #CE397C #C6CE39 #39CE8B

square

#4139CE #CE397C #C6CE39 #39CE8B

split-complementary

#4139CE #CE8B39 #7CCE39

monochromatic

#201C71 #2F28A2 #4139CE #706ADA #9F9BE6

Accessibility & contrast

On white

7.77

#4139CE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#4139CE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4139CE

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4139CE	#FFFFFF	#000000	##FFFFFF
##4139CE	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)

#0059D2

Deuteranopia (green-blind)

#004CCB

Tritanopia (blue-blind)

#006380

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #4139ce;
/* rgb */ color: rgb(65, 57, 206);
/* oklch */ color: oklch(46.1% 0.219 275.9);

Tailwind

colors: {
  custom: {
    50: '#8971de',
    500: '#4139ce',
    950: '#000000',
  },
}

SCSS

$custom: #4139ce;
$custom-light: #8971de;
$custom-dark: #000000;

JSON

{
  "hex": "#4139ce",
  "rgb": {
    "r": 65,
    "g": 57,
    "b": 206
  },
  "hsl": {
    "h": 243.221,
    "s": 60.324,
    "l": 51.569
  },
  "oklch": {
    "l": 0.46074,
    "c": 0.21884,
    "h": 275.9
  },
  "luminance": 0.08506
}

Semantic roles & 50–950 ramp

primary

#4139CE

secondary

#CFD291

accent

#E344DB

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4139CE

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

Preview Lab → · Contrast checker → · Palette generator →