#3A37CC#3A37CC

#3A37CC is a mid, highly saturated blue. Relative luminance 0.080; OKLCH L 45.1% C 0.220 H 274.0°. Best body text is #FFFFFF at 8.08:1 contrast (WCAG AA passes).

Color values

HEX	#3A37CC
RGB	rgb(58, 55, 204)
HSL	hsl(241, 59%, 51%)
HSV	hsv(241, 73%, 80%)
CMYK	cmyk(71.6%, 73%, 0%, 20%)
CIE-LAB	lab(33.96, 48.74, -75.91)
CIE-LCH	lch(33.96, 90.21, 302.71°)
OKLab	oklab(45.15% 0.0153 -0.2196)
OKLCH	oklch(45.15% 0.22 274)
XYZ	xyz(14.0066, 7.9902, 57.9191)
Luminance	0.0799 (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

#3A37CC #C9CC37

analogous

#377ECC #3A37CC #8437CC

triadic

#3A37CC #CC3A37 #37CC3A

tetradic

#3A37CC #CC377E #C9CC37 #37CC84

square

#3A37CC #CC377E #C9CC37 #37CC84

split-complementary

#3A37CC #CC8437 #7ECC37

monochromatic

#1D1C6D #2B289E #3A37CC #6A68D8 #9A99E5

Accessibility & contrast

On white

8.08

#3A37CC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#3A37CC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3A37CC

8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A37CC	#FFFFFF	#000000	##FFFFFF
##3A37CC	1.00	8.08	2.60	8.08
#FFFFFF	8.08	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057D0

Deuteranopia (green-blind)

#0049C9

Tritanopia (blue-blind)

#00627E

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #3a37cc;
/* rgb */ color: rgb(58, 55, 204);
/* oklch */ color: oklch(45.1% 0.220 274.0);

Tailwind

colors: {
  custom: {
    50: '#8670dd',
    500: '#3a37cc',
    950: '#000000',
  },
}

SCSS

$custom: #3a37cc;
$custom-light: #8670dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3a37cc",
  "rgb": {
    "r": 58,
    "g": 55,
    "b": 204
  },
  "hsl": {
    "h": 241.208,
    "s": 59.363,
    "l": 50.784
  },
  "oklch": {
    "l": 0.45147,
    "c": 0.22009,
    "h": 274
  },
  "luminance": 0.07992
}

Semantic roles & 50–950 ramp

primary

#3A37CC

secondary

#CFD08E

accent

#E345DF

background

#F9F6FD

surface

#F1ECFB

border

#CBC7D4

text

#0D0715

muted

#7E7A83

Preview Lab

Preview with #3A37CC

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

Preview Lab → · Contrast checker → · Palette generator →