#3970C2#3970C2

#3970C2 is a mid, vivid blue. Relative luminance 0.164; OKLCH L 55.0% C 0.141 H 258.3°. Best body text is #FFFFFF at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#3970C2
RGB	rgb(57, 112, 194)
HSL	hsl(216, 55%, 49%)
HSV	hsv(216, 71%, 76%)
CMYK	cmyk(70.6%, 42.3%, 0%, 23.9%)
CIE-LAB	lab(47.43, 9.48, -48.23)
CIE-LCH	lch(47.43, 49.16, 281.12°)
OKLab	oklab(54.96% -0.0284 -0.1378)
OKLCH	oklch(54.96% 0.141 258.3)
XYZ	xyz(17.2156, 16.3514, 53.2773)
Luminance	0.1635 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3970C2 #C28B39

analogous

#39B5C2 #3970C2 #4639C2

triadic

#3970C2 #C23970 #70C239

tetradic

#3970C2 #C239B5 #C28B39 #39C246

square

#3970C2 #C239B5 #C28B39 #39C246

split-complementary

#3970C2 #C24639 #B5C239

monochromatic

#1D3963 #2B5593 #3970C2 #6691D2 #95B3E0

Accessibility & contrast

On white

4.92

#3970C2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.27

#3970C2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3970C2

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3970C2	#FFFFFF	#000000	##FFFFFF
##3970C2	1.00	4.92	4.27	4.92
#FFFFFF	4.92	1.00	21.00	1.00
#000000	4.27	21.00	1.00	21.00
##FFFFFF	4.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4977C5

Deuteranopia (green-blind)

#326BC0

Tritanopia (blue-blind)

#00838F

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3970c2;
/* rgb */ color: rgb(57, 112, 194);
/* oklch */ color: oklch(55.0% 0.141 258.3);

Tailwind

colors: {
  custom: {
    50: '#8098d5',
    500: '#3970c2',
    950: '#000000',
  },
}

SCSS

$custom: #3970c2;
$custom-light: #8098d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3970c2",
  "rgb": {
    "r": 57,
    "g": 112,
    "b": 194
  },
  "hsl": {
    "h": 215.912,
    "s": 54.582,
    "l": 49.216
  },
  "oklch": {
    "l": 0.54956,
    "c": 0.1407,
    "h": 258.3
  },
  "luminance": 0.16353
}

Semantic roles & 50–950 ramp

primary

#3970C2

secondary

#CBB28B

accent

#A24ADE

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0D14

muted

#7C7E83

Preview Lab

Preview with #3970C2

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

Preview Lab → · Contrast checker → · Palette generator →