#3138A5#3138A5

#3138A5 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 41.0% C 0.172 H 273.1°. Best body text is #FFFFFF at 9.38:1 contrast (WCAG AA passes).

Color values

HEX	#3138A5
RGB	rgb(49, 56, 165)
HSL	hsl(236, 54%, 42%)
HSV	hsv(236, 70%, 65%)
CMYK	cmyk(70.3%, 66.1%, 0%, 35.3%)
CIE-LAB	lab(29.90, 33.93, -59.52)
CIE-LCH	lch(29.90, 68.51, 299.69°)
OKLab	oklab(40.95% 0.0094 -0.1719)
OKLCH	oklch(40.95% 0.172 273.1)
XYZ	xyz(9.4701, 6.1970, 36.2871)
Luminance	0.0620 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.72

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3138A5 #A59E31

analogous

#3172A5 #3138A5 #6431A5

triadic

#3138A5 #A53138 #38A531

tetradic

#3138A5 #A53172 #A59E31 #31A564

square

#3138A5 #A53172 #A59E31 #31A564

split-complementary

#3138A5 #A56431 #72A531

monochromatic

#151847 #232876 #3138A5 #4A52C9 #797FD7

Accessibility & contrast

On white

9.38

#3138A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#3138A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3138A5

9.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3138A5	#FFFFFF	#000000	##FFFFFF
##3138A5	1.00	9.38	2.24	9.38
#FFFFFF	9.38	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA8

Deuteranopia (green-blind)

#0041A3

Tritanopia (blue-blind)

#005569

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #3138a5;
/* rgb */ color: rgb(49, 56, 165);
/* oklch */ color: oklch(41.0% 0.172 273.1);

Tailwind

colors: {
  custom: {
    50: '#796fc1',
    500: '#3138a5',
    950: '#000000',
  },
}

SCSS

$custom: #3138a5;
$custom-light: #796fc1;
$custom-dark: #000000;

JSON

{
  "hex": "#3138a5",
  "rgb": {
    "r": 49,
    "g": 56,
    "b": 165
  },
  "hsl": {
    "h": 236.379,
    "s": 54.206,
    "l": 41.961
  },
  "oklch": {
    "l": 0.40954,
    "c": 0.17216,
    "h": 273.1
  },
  "luminance": 0.06198
}

Semantic roles & 50–950 ramp

primary

#3138A5

secondary

#C0BB72

accent

#D54ADE

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #3138A5

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

Preview Lab → · Contrast checker → · Palette generator →