#4138CC#4138CC

#4138CC is a mid, highly saturated blue. Relative luminance 0.083; OKLCH L 45.7% C 0.217 H 276.2°. Best body text is #FFFFFF at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#4138CC
RGB	rgb(65, 56, 204)
HSL	hsl(244, 59%, 51%)
HSV	hsv(244, 73%, 80%)
CMYK	cmyk(68.1%, 72.5%, 0%, 20%)
CIE-LAB	lab(34.62, 48.91, -74.81)
CIE-LCH	lch(34.62, 89.37, 303.18°)
OKLab	oklab(45.74% 0.0233 -0.2162)
OKLCH	oklch(45.74% 0.217 276.2)
XYZ	xyz(14.4897, 8.3105, 57.9555)
Luminance	0.0831 (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

#4138CC #C3CC38

analogous

#3879CC #4138CC #8B38CC

triadic

#4138CC #CC4138 #38CC41

tetradic

#4138CC #CC3879 #C3CC38 #38CC8B

square

#4138CC #CC3879 #C3CC38 #38CC8B

split-complementary

#4138CC #CC8B38 #79CC38

monochromatic

#211C6E #30299E #4138CC #7069D8 #9E99E5

Accessibility & contrast

On white

7.89

#4138CC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#4138CC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4138CC

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4138CC	#FFFFFF	#000000	##FFFFFF
##4138CC	1.00	7.89	2.66	7.89
#FFFFFF	7.89	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058D0

Deuteranopia (green-blind)

#004BC9

Tritanopia (blue-blind)

#00627F

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #4138cc;
/* rgb */ color: rgb(65, 56, 204);
/* oklch */ color: oklch(45.7% 0.217 276.2);

Tailwind

colors: {
  custom: {
    50: '#8871dd',
    500: '#4138cc',
    950: '#000000',
  },
}

SCSS

$custom: #4138cc;
$custom-light: #8871dd;
$custom-dark: #000000;

JSON

{
  "hex": "#4138cc",
  "rgb": {
    "r": 65,
    "g": 56,
    "b": 204
  },
  "hsl": {
    "h": 243.649,
    "s": 59.2,
    "l": 50.98
  },
  "oklch": {
    "l": 0.45737,
    "c": 0.21743,
    "h": 276.2
  },
  "luminance": 0.08312
}

Semantic roles & 50–950 ramp

primary

#4138CC

secondary

#CDD18F

accent

#E245D9

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4138CC

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

Preview Lab → · Contrast checker → · Palette generator →