#3138C4#3138C4

#3138C4 is a dark, highly saturated blue. Relative luminance 0.075; OKLCH L 44.0% C 0.212 H 271.6°. Best body text is #FFFFFF at 8.42:1 contrast (WCAG AA passes).

Color values

HEX	#3138C4
RGB	rgb(49, 56, 196)
HSL	hsl(237, 60%, 48%)
HSV	hsv(237, 75%, 77%)
CMYK	cmyk(75%, 71.4%, 0%, 23.1%)
CIE-LAB	lab(32.84, 44.69, -73.10)
CIE-LCH	lch(32.84, 85.68, 301.44°)
OKLab	oklab(43.97% 0.0059 -0.2116)
OKLCH	oklch(43.97% 0.212 271.6)
XYZ	xyz(12.6412, 7.4655, 52.9886)
Luminance	0.0747 (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

#3138C4 #C4BD31

analogous

#3181C4 #3138C4 #7331C4

triadic

#3138C4 #C43138 #38C431

tetradic

#3138C4 #C43181 #C4BD31 #31C473

square

#3138C4 #C43181 #C4BD31 #31C473

split-complementary

#3138C4 #C47331 #81C431

monochromatic

#191C62 #252A93 #3138C4 #5C62D6 #8D91E2

Accessibility & contrast

On white

8.42

#3138C4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#3138C4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3138C4

8.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3138C4	#FFFFFF	#000000	##FFFFFF
##3138C4	1.00	8.42	2.49	8.42
#FFFFFF	8.42	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C8

Deuteranopia (green-blind)

#0046C1

Tritanopia (blue-blind)

#00607A

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3138c4;
/* rgb */ color: rgb(49, 56, 196);
/* oklch */ color: oklch(44.0% 0.212 271.6);

Tailwind

colors: {
  custom: {
    50: '#8070d7',
    500: '#3138c4',
    950: '#000000',
  },
}

SCSS

$custom: #3138c4;
$custom-light: #8070d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3138c4",
  "rgb": {
    "r": 49,
    "g": 56,
    "b": 196
  },
  "hsl": {
    "h": 237.143,
    "s": 60,
    "l": 48.039
  },
  "oklch": {
    "l": 0.4397,
    "c": 0.21166,
    "h": 271.6
  },
  "luminance": 0.07467
}

Semantic roles & 50–950 ramp

primary

#3138C4

secondary

#CDC984

accent

#DC45E3

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0715

muted

#7D7A83

Preview Lab

Preview with #3138C4

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

Preview Lab → · Contrast checker → · Palette generator →