#3D37B2#3D37B2

#3D37B2 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.8% C 0.187 H 277.1°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#3D37B2
RGB	rgb(61, 55, 178)
HSL	hsl(243, 53%, 46%)
HSV	hsv(243, 69%, 70%)
CMYK	cmyk(65.7%, 69.1%, 0%, 30.2%)
CIE-LAB	lab(31.67, 40.58, -64.39)
CIE-LCH	lch(31.67, 76.11, 302.22°)
OKLab	oklab(42.8% 0.0232 -0.1858)
OKLCH	oklch(42.8% 0.187 277.1)
XYZ	xyz(11.3239, 6.9379, 42.8532)
Luminance	0.0694 (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

#3D37B2 #ACB237

analogous

#376EB2 #3D37B2 #7A37B2

triadic

#3D37B2 #B23D37 #37B23D

tetradic

#3D37B2 #B2376E #ACB237 #37B27A

square

#3D37B2 #B2376E #ACB237 #37B27A

split-complementary

#3D37B2 #B27A37 #6EB237

monochromatic

#1D1A54 #2D2983 #3D37B2 #605ACC #8D89DB

Accessibility & contrast

On white

8.79

#3D37B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#3D37B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3D37B2

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D37B2	#FFFFFF	#000000	##FFFFFF
##3D37B2	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B6

Deuteranopia (green-blind)

#0045B0

Tritanopia (blue-blind)

#005870

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #3d37b2;
/* rgb */ color: rgb(61, 55, 178);
/* oklch */ color: oklch(42.8% 0.187 277.1);

Tailwind

colors: {
  custom: {
    50: '#816fca',
    500: '#3d37b2',
    950: '#000000',
  },
}

SCSS

$custom: #3d37b2;
$custom-light: #816fca;
$custom-dark: #000000;

JSON

{
  "hex": "#3d37b2",
  "rgb": {
    "r": 61,
    "g": 55,
    "b": 178
  },
  "hsl": {
    "h": 242.927,
    "s": 52.79,
    "l": 45.686
  },
  "oklch": {
    "l": 0.42803,
    "c": 0.18729,
    "h": 277.1
  },
  "luminance": 0.06939
}

Semantic roles & 50–950 ramp

primary

#3D37B2

secondary

#C1C580

accent

#DC4CD5

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #3D37B2

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

Preview Lab → · Contrast checker → · Palette generator →