#3138AF#3138AF

#3138AF is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.9% C 0.185 H 272.6°. Best body text is #FFFFFF at 9.07:1 contrast (WCAG AA passes).

Color values

HEX	#3138AF
RGB	rgb(49, 56, 175)
HSL	hsl(237, 56%, 44%)
HSV	hsv(237, 72%, 69%)
CMYK	cmyk(72%, 68%, 0%, 31.4%)
CIE-LAB	lab(30.82, 37.46, -64.01)
CIE-LCH	lch(30.82, 74.17, 300.34°)
OKLab	oklab(41.9% 0.0084 -0.1851)
OKLCH	oklch(41.9% 0.185 272.6)
XYZ	xyz(10.4161, 6.5754, 41.2694)
Luminance	0.0658 (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

#3138AF #AFA831

analogous

#3177AF #3138AF #6931AF

triadic

#3138AF #AF3138 #38AF31

tetradic

#3138AF #AF3177 #AFA831 #31AF69

square

#3138AF #AF3177 #AFA831 #31AF69

split-complementary

#3138AF #AF6931 #77AF31

monochromatic

#16194F #24297F #3138AF #4F56CE #7F84DB

Accessibility & contrast

On white

9.07

#3138AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#3138AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3138AF

9.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3138AF	#FFFFFF	#000000	##FFFFFF
##3138AF	1.00	9.07	2.32	9.07
#FFFFFF	9.07	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB3

Deuteranopia (green-blind)

#0043AD

Tritanopia (blue-blind)

#00586F

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3138af;
/* rgb */ color: rgb(49, 56, 175);
/* oklch */ color: oklch(41.9% 0.185 272.6);

Tailwind

colors: {
  custom: {
    50: '#7c6fc8',
    500: '#3138af',
    950: '#000000',
  },
}

SCSS

$custom: #3138af;
$custom-light: #7c6fc8;
$custom-dark: #000000;

JSON

{
  "hex": "#3138af",
  "rgb": {
    "r": 49,
    "g": 56,
    "b": 175
  },
  "hsl": {
    "h": 236.667,
    "s": 56.25,
    "l": 43.922
  },
  "oklch": {
    "l": 0.419,
    "c": 0.18525,
    "h": 272.6
  },
  "luminance": 0.06576
}

Semantic roles & 50–950 ramp

primary

#3138AF

secondary

#C4C078

accent

#D748E0

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3138AF

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

Preview Lab → · Contrast checker → · Palette generator →