#4138CE#4138CE

#4138CE is a mid, highly saturated blue. Relative luminance 0.084; OKLCH L 45.9% C 0.220 H 276.0°. Best body text is #FFFFFF at 7.83:1 contrast (WCAG AA passes).

Color values

HEX	#4138CE
RGB	rgb(65, 56, 206)
HSL	hsl(244, 60%, 51%)
HSV	hsv(244, 73%, 81%)
CMYK	cmyk(68.4%, 72.8%, 0%, 19.2%)
CIE-LAB	lab(34.82, 49.54, -75.65)
CIE-LCH	lch(34.82, 90.42, 303.22°)
OKLab	oklab(45.93% 0.0229 -0.2186)
OKLCH	oklch(45.93% 0.22 276)
XYZ	xyz(14.7311, 8.4070, 59.2270)
Luminance	0.0841 (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

#4138CE #C5CE38

analogous

#387ACE #4138CE #8C38CE

triadic

#4138CE #CE4138 #38CE41

tetradic

#4138CE #CE387A #C5CE38 #38CE8C

square

#4138CE #CE387A #C5CE38 #38CE8C

split-complementary

#4138CE #CE8C38 #7ACE38

monochromatic

#211C70 #2F28A1 #4138CE #7069DA #9F9AE6

Accessibility & contrast

On white

7.83

#4138CE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#4138CE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4138CE

7.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4138CE	#FFFFFF	#000000	##FFFFFF
##4138CE	1.00	7.83	2.68	7.83
#FFFFFF	7.83	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058D2

Deuteranopia (green-blind)

#004BCB

Tritanopia (blue-blind)

#006380

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #4138ce;
/* rgb */ color: rgb(65, 56, 206);
/* oklch */ color: oklch(45.9% 0.220 276.0);

Tailwind

colors: {
  custom: {
    50: '#8971de',
    500: '#4138ce',
    950: '#000000',
  },
}

SCSS

$custom: #4138ce;
$custom-light: #8971de;
$custom-dark: #000000;

JSON

{
  "hex": "#4138ce",
  "rgb": {
    "r": 65,
    "g": 56,
    "b": 206
  },
  "hsl": {
    "h": 243.6,
    "s": 60.484,
    "l": 51.373
  },
  "oklch": {
    "l": 0.45934,
    "c": 0.21983,
    "h": 276
  },
  "luminance": 0.08408
}

Semantic roles & 50–950 ramp

primary

#4138CE

secondary

#CED290

accent

#E444DA

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4138CE

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

Preview Lab → · Contrast checker → · Palette generator →