#3138C1#3138C1

#3138C1 is a dark, highly saturated blue. Relative luminance 0.073; OKLCH L 43.7% C 0.208 H 271.7°. Best body text is #FFFFFF at 8.51:1 contrast (WCAG AA passes).

Color values

HEX	#3138C1
RGB	rgb(49, 56, 193)
HSL	hsl(237, 60%, 47%)
HSV	hsv(237, 75%, 76%)
CMYK	cmyk(74.6%, 71%, 0%, 24.3%)
CIE-LAB	lab(32.55, 43.67, -71.83)
CIE-LCH	lch(32.55, 84.06, 301.30°)
OKLab	oklab(43.67% 0.0063 -0.2079)
OKLCH	oklch(43.67% 0.208 271.7)
XYZ	xyz(12.3032, 7.3303, 51.2082)
Luminance	0.0733 (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

#3138C1 #C1BA31

analogous

#3180C1 #3138C1 #7231C1

triadic

#3138C1 #C13138 #38C131

tetradic

#3138C1 #C13180 #C1BA31 #31C172

square

#3138C1 #C13180 #C1BA31 #31C172

split-complementary

#3138C1 #C17231 #80C131

monochromatic

#181C5F #252A90 #3138C1 #5A60D5 #8B8FE2

Accessibility & contrast

On white

8.51

#3138C1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#3138C1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3138C1

8.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3138C1	#FFFFFF	#000000	##FFFFFF
##3138C1	1.00	8.51	2.47	8.51
#FFFFFF	8.51	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C5

Deuteranopia (green-blind)

#0046BF

Tritanopia (blue-blind)

#005E79

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #3138c1;
/* rgb */ color: rgb(49, 56, 193);
/* oklch */ color: oklch(43.7% 0.208 271.7);

Tailwind

colors: {
  custom: {
    50: '#8070d5',
    500: '#3138c1',
    950: '#000000',
  },
}

SCSS

$custom: #3138c1;
$custom-light: #8070d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3138c1",
  "rgb": {
    "r": 49,
    "g": 56,
    "b": 193
  },
  "hsl": {
    "h": 237.083,
    "s": 59.504,
    "l": 47.451
  },
  "oklch": {
    "l": 0.43669,
    "c": 0.20797,
    "h": 271.7
  },
  "luminance": 0.07332
}

Semantic roles & 50–950 ramp

primary

#3138C1

secondary

#CCC882

accent

#DB45E3

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0714

muted

#7D7A83

Preview Lab

Preview with #3138C1

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

Preview Lab → · Contrast checker → · Palette generator →