#3138AE#3138AE

#3138AE is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.8% C 0.184 H 272.7°. Best body text is #FFFFFF at 9.10:1 contrast (WCAG AA passes).

Color values

HEX	#3138AE
RGB	rgb(49, 56, 174)
HSL	hsl(237, 56%, 44%)
HSV	hsv(237, 72%, 68%)
CMYK	cmyk(71.8%, 67.8%, 0%, 31.8%)
CIE-LAB	lab(30.73, 37.11, -63.57)
CIE-LCH	lch(30.73, 73.61, 300.28°)
OKLab	oklab(41.8% 0.0086 -0.1838)
OKLCH	oklch(41.8% 0.184 272.7)
XYZ	xyz(10.3182, 6.5363, 40.7540)
Luminance	0.0654 (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

#3138AE #AEA731

analogous

#3176AE #3138AE #6831AE

triadic

#3138AE #AE3138 #38AE31

tetradic

#3138AE #AE3176 #AEA731 #31AE68

square

#3138AE #AE3176 #AEA731 #31AE68

split-complementary

#3138AE #AE6831 #76AE31

monochromatic

#16194E #24297E #3138AE #4F56CD #7F84DB

Accessibility & contrast

On white

9.10

#3138AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#3138AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3138AE

9.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3138AE	#FFFFFF	#000000	##FFFFFF
##3138AE	1.00	9.10	2.31	9.10
#FFFFFF	9.10	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB2

Deuteranopia (green-blind)

#0042AC

Tritanopia (blue-blind)

#00586E

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #3138ae;
/* rgb */ color: rgb(49, 56, 174);
/* oklch */ color: oklch(41.8% 0.184 272.7);

Tailwind

colors: {
  custom: {
    50: '#7b6fc7',
    500: '#3138ae',
    950: '#000000',
  },
}

SCSS

$custom: #3138ae;
$custom-light: #7b6fc7;
$custom-dark: #000000;

JSON

{
  "hex": "#3138ae",
  "rgb": {
    "r": 49,
    "g": 56,
    "b": 174
  },
  "hsl": {
    "h": 236.64,
    "s": 56.054,
    "l": 43.725
  },
  "oklch": {
    "l": 0.41804,
    "c": 0.18396,
    "h": 272.7
  },
  "luminance": 0.06537
}

Semantic roles & 50–950 ramp

primary

#3138AE

secondary

#C4BF77

accent

#D748DF

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3138AE

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

Preview Lab → · Contrast checker → · Palette generator →