#3D37AC#3D37AC

#3D37AC is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.2% C 0.180 H 277.7°. Best body text is #FFFFFF at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#3D37AC
RGB	rgb(61, 55, 172)
HSL	hsl(243, 52%, 45%)
HSV	hsv(243, 68%, 67%)
CMYK	cmyk(64.5%, 68%, 0%, 32.5%)
CIE-LAB	lab(31.12, 38.59, -61.70)
CIE-LCH	lch(31.12, 72.77, 302.02°)
OKLab	oklab(42.24% 0.024 -0.178)
OKLCH	oklch(42.24% 0.18 277.7)
XYZ	xyz(10.7346, 6.7022, 39.7497)
Luminance	0.0670 (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

#3D37AC #A6AC37

analogous

#376CAC #3D37AC #7837AC

triadic

#3D37AC #AC3D37 #37AC3D

tetradic

#3D37AC #AC376C #A6AC37 #37AC78

square

#3D37AC #AC376C #A6AC37 #37AC78

split-complementary

#3D37AC #AC7837 #6CAC37

monochromatic

#1C194F #2D287E #3D37AC #5D57C9 #8A85D8

Accessibility & contrast

On white

8.97

#3D37AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#3D37AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3D37AC

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D37AC	#FFFFFF	#000000	##FFFFFF
##3D37AC	1.00	8.97	2.34	8.97
#FFFFFF	8.97	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EB0

Deuteranopia (green-blind)

#0044AA

Tritanopia (blue-blind)

#00566D

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #3d37ac;
/* rgb */ color: rgb(61, 55, 172);
/* oklch */ color: oklch(42.2% 0.180 277.7);

Tailwind

colors: {
  custom: {
    50: '#806fc6',
    500: '#3d37ac',
    950: '#000000',
  },
}

SCSS

$custom: #3d37ac;
$custom-light: #806fc6;
$custom-dark: #000000;

JSON

{
  "hex": "#3d37ac",
  "rgb": {
    "r": 61,
    "g": 55,
    "b": 172
  },
  "hsl": {
    "h": 243.077,
    "s": 51.542,
    "l": 44.51
  },
  "oklch": {
    "l": 0.42242,
    "c": 0.17959,
    "h": 277.7
  },
  "luminance": 0.06703
}

Semantic roles & 50–950 ramp

primary

#3D37AC

secondary

#BEC27D

accent

#DB4DD4

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #3D37AC

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

Preview Lab → · Contrast checker → · Palette generator →