#3139CA#3139CA

#3139CA is a dark, highly saturated blue. Relative luminance 0.078; OKLCH L 44.7% C 0.218 H 271.2°. Best body text is #FFFFFF at 8.18:1 contrast (WCAG AA passes).

Color values

HEX	#3139CA
RGB	rgb(49, 57, 202)
HSL	hsl(237, 61%, 49%)
HSV	hsv(237, 76%, 79%)
CMYK	cmyk(75.7%, 71.8%, 0%, 20.8%)
CIE-LAB	lab(33.65, 46.13, -75.27)
CIE-LCH	lch(33.65, 88.28, 301.50°)
OKLab	oklab(44.73% 0.0045 -0.2179)
OKLCH	oklch(44.73% 0.218 271.2)
XYZ	xyz(13.3868, 7.8420, 56.6738)
Luminance	0.0784 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 3.04

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3139CA #CAC231

analogous

#3186CA #3139CA #7631CA

triadic

#3139CA #CA3139 #39CA31

tetradic

#3139CA #CA3186 #CAC231 #31CA76

square

#3139CA #CA3186 #CAC231 #31CA76

split-complementary

#3139CA #CA7631 #86CA31

monochromatic

#191D67 #252B99 #3139CA #6066D8 #9195E4

Accessibility & contrast

On white

8.18

#3139CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#3139CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3139CA

8.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3139CA	#FFFFFF	#000000	##FFFFFF
##3139CA	1.00	8.18	2.57	8.18
#FFFFFF	8.18	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057CE

Deuteranopia (green-blind)

#0048C7

Tritanopia (blue-blind)

#00627E

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3139ca;
/* rgb */ color: rgb(49, 57, 202);
/* oklch */ color: oklch(44.7% 0.218 271.2);

Tailwind

colors: {
  custom: {
    50: '#8271db',
    500: '#3139ca',
    950: '#000000',
  },
}

SCSS

$custom: #3139ca;
$custom-light: #8271db;
$custom-dark: #000000;

JSON

{
  "hex": "#3139ca",
  "rgb": {
    "r": 49,
    "g": 57,
    "b": 202
  },
  "hsl": {
    "h": 236.863,
    "s": 60.956,
    "l": 49.216
  },
  "oklch": {
    "l": 0.44728,
    "c": 0.21797,
    "h": 271.2
  },
  "luminance": 0.07843
}

Semantic roles & 50–950 ramp

primary

#3139CA

secondary

#CFCB88

accent

#DC44E4

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0C0815

muted

#7D7B83

Preview Lab

Preview with #3139CA

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

Preview Lab → · Contrast checker → · Palette generator →