#4138CB#4138CB

#4138CB is a mid, highly saturated blue. Relative luminance 0.083; OKLCH L 45.6% C 0.216 H 276.2°. Best body text is #FFFFFF at 7.92:1 contrast (WCAG AA passes).

Color values

HEX	#4138CB
RGB	rgb(65, 56, 203)
HSL	hsl(244, 59%, 51%)
HSV	hsv(244, 72%, 80%)
CMYK	cmyk(68%, 72.4%, 0%, 20.4%)
CIE-LAB	lab(34.52, 48.59, -74.38)
CIE-LCH	lch(34.52, 88.85, 303.15°)
OKLab	oklab(45.64% 0.0235 -0.2149)
OKLCH	oklch(45.64% 0.216 276.2)
XYZ	xyz(14.3701, 8.2627, 57.3259)
Luminance	0.0826 (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

#4138CB #C2CB38

analogous

#3879CB #4138CB #8A38CB

triadic

#4138CB #CB4138 #38CB41

tetradic

#4138CB #CB3879 #C2CB38 #38CB8A

square

#4138CB #CB3879 #C2CB38 #38CB8A

split-complementary

#4138CB #CB8A38 #79CB38

monochromatic

#211C6C #30299D #4138CB #6F69D8 #9E99E4

Accessibility & contrast

On white

7.92

#4138CB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#4138CB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4138CB

7.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4138CB	#FFFFFF	#000000	##FFFFFF
##4138CB	1.00	7.92	2.65	7.92
#FFFFFF	7.92	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057CF

Deuteranopia (green-blind)

#004BC8

Tritanopia (blue-blind)

#00617E

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #4138cb;
/* rgb */ color: rgb(65, 56, 203);
/* oklch */ color: oklch(45.6% 0.216 276.2);

Tailwind

colors: {
  custom: {
    50: '#8871dc',
    500: '#4138cb',
    950: '#000000',
  },
}

SCSS

$custom: #4138cb;
$custom-light: #8871dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4138cb",
  "rgb": {
    "r": 65,
    "g": 56,
    "b": 203
  },
  "hsl": {
    "h": 243.673,
    "s": 58.566,
    "l": 50.784
  },
  "oklch": {
    "l": 0.45638,
    "c": 0.21623,
    "h": 276.2
  },
  "luminance": 0.08264
}

Semantic roles & 50–950 ramp

primary

#4138CB

secondary

#CCD08F

accent

#E246D8

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4138CB

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

Preview Lab → · Contrast checker → · Palette generator →