#3D37AE#3D37AE

#3D37AE is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.4% C 0.182 H 277.5°. Best body text is #FFFFFF at 8.91:1 contrast (WCAG AA passes).

Color values

HEX	#3D37AE
RGB	rgb(61, 55, 174)
HSL	hsl(243, 52%, 45%)
HSV	hsv(243, 68%, 68%)
CMYK	cmyk(64.9%, 68.4%, 0%, 31.8%)
CIE-LAB	lab(31.30, 39.25, -62.60)
CIE-LCH	lch(31.30, 73.89, 302.09°)
OKLab	oklab(42.43% 0.0238 -0.1806)
OKLCH	oklch(42.43% 0.182 277.5)
XYZ	xyz(10.9282, 6.7796, 40.7689)
Luminance	0.0678 (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

#3D37AE #A8AE37

analogous

#376DAE #3D37AE #7837AE

triadic

#3D37AE #AE3D37 #37AE3D

tetradic

#3D37AE #AE376D #A8AE37 #37AE78

square

#3D37AE #AE376D #A8AE37 #37AE78

split-complementary

#3D37AE #AE7837 #6DAE37

monochromatic

#1C1A51 #2D287F #3D37AE #5E58CA #8B86D9

Accessibility & contrast

On white

8.91

#3D37AE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#3D37AE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3D37AE

8.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D37AE	#FFFFFF	#000000	##FFFFFF
##3D37AE	1.00	8.91	2.36	8.91
#FFFFFF	8.91	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB2

Deuteranopia (green-blind)

#0045AC

Tritanopia (blue-blind)

#00576E

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3d37ae;
/* rgb */ color: rgb(61, 55, 174);
/* oklch */ color: oklch(42.4% 0.182 277.5);

Tailwind

colors: {
  custom: {
    50: '#816fc7',
    500: '#3d37ae',
    950: '#000000',
  },
}

SCSS

$custom: #3d37ae;
$custom-light: #816fc7;
$custom-dark: #000000;

JSON

{
  "hex": "#3d37ae",
  "rgb": {
    "r": 61,
    "g": 55,
    "b": 174
  },
  "hsl": {
    "h": 243.025,
    "s": 51.965,
    "l": 44.902
  },
  "oklch": {
    "l": 0.42428,
    "c": 0.18217,
    "h": 277.5
  },
  "luminance": 0.0678
}

Semantic roles & 50–950 ramp

primary

#3D37AE

secondary

#BFC37E

accent

#DB4CD4

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #3D37AE

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

Preview Lab → · Contrast checker → · Palette generator →