#3138A4#3138A4

#3138A4 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.9% C 0.171 H 273.2°. Best body text is #FFFFFF at 9.41:1 contrast (WCAG AA passes).

Color values

HEX	#3138A4
RGB	rgb(49, 56, 164)
HSL	hsl(236, 54%, 42%)
HSV	hsv(236, 70%, 64%)
CMYK	cmyk(70.1%, 65.9%, 0%, 35.7%)
CIE-LAB	lab(29.81, 33.58, -59.06)
CIE-LCH	lch(29.81, 67.94, 299.62°)
OKLab	oklab(40.86% 0.0095 -0.1706)
OKLCH	oklch(40.86% 0.171 273.2)
XYZ	xyz(9.3794, 6.1608, 35.8096)
Luminance	0.0616 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.83

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3138A4 #A49D31

analogous

#3172A4 #3138A4 #6431A4

triadic

#3138A4 #A43138 #38A431

tetradic

#3138A4 #A43172 #A49D31 #31A464

square

#3138A4 #A43172 #A49D31 #31A464

split-complementary

#3138A4 #A46431 #72A431

monochromatic

#151846 #232875 #3138A4 #4951C9 #797ED7

Accessibility & contrast

On white

9.41

#3138A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#3138A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3138A4

9.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3138A4	#FFFFFF	#000000	##FFFFFF
##3138A4	1.00	9.41	2.23	9.41
#FFFFFF	9.41	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA7

Deuteranopia (green-blind)

#0041A2

Tritanopia (blue-blind)

#005469

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3138a4;
/* rgb */ color: rgb(49, 56, 164);
/* oklch */ color: oklch(40.9% 0.171 273.2);

Tailwind

colors: {
  custom: {
    50: '#796fc0',
    500: '#3138a4',
    950: '#000000',
  },
}

SCSS

$custom: #3138a4;
$custom-light: #796fc0;
$custom-dark: #000000;

JSON

{
  "hex": "#3138a4",
  "rgb": {
    "r": 49,
    "g": 56,
    "b": 164
  },
  "hsl": {
    "h": 236.348,
    "s": 53.991,
    "l": 41.765
  },
  "oklch": {
    "l": 0.40861,
    "c": 0.17083,
    "h": 273.2
  },
  "luminance": 0.06162
}

Semantic roles & 50–950 ramp

primary

#3138A4

secondary

#BFBA72

accent

#D44ADD

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #3138A4

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

Preview Lab → · Contrast checker → · Palette generator →