#3975CD#3975CD

#3975CD is a mid, vivid blue. Relative luminance 0.180; OKLCH L 56.8% C 0.150 H 258.1°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#3975CD
RGB	rgb(57, 117, 205)
HSL	hsl(216, 60%, 51%)
HSV	hsv(216, 72%, 80%)
CMYK	cmyk(72.2%, 42.9%, 0%, 19.6%)
CIE-LAB	lab(49.49, 10.38, -51.24)
CIE-LCH	lch(49.49, 52.28, 281.45°)
OKLab	oklab(56.76% -0.0308 -0.1466)
OKLCH	oklch(56.76% 0.15 258.1)
XYZ	xyz(19.0641, 17.9981, 60.2150)
Luminance	0.1800 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3975CD #CD9139

analogous

#39BFCD #3975CD #4739CD

triadic

#3975CD #CD3975 #75CD39

tetradic

#3975CD #CD39BF #CD9139 #39CD47

square

#3975CD #CD39BF #CD9139 #39CD47

split-complementary

#3975CD #CD4739 #BFCD39

monochromatic

#1C3E6F #2859A0 #3975CD #6A97D9 #9BB9E6

Accessibility & contrast

On white

4.57

#3975CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#3975CD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3975CD

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3975CD	#FFFFFF	#000000	##000000
##3975CD	1.00	4.57	4.60	4.60
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A7DD0

Deuteranopia (green-blind)

#2F6FCB

Tritanopia (blue-blind)

#008A97

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3975cd;
/* rgb */ color: rgb(57, 117, 205);
/* oklch */ color: oklch(56.8% 0.150 258.1);

Tailwind

colors: {
  custom: {
    50: '#829cdd',
    500: '#3975cd',
    950: '#000000',
  },
}

SCSS

$custom: #3975cd;
$custom-light: #829cdd;
$custom-dark: #000000;

JSON

{
  "hex": "#3975cd",
  "rgb": {
    "r": 57,
    "g": 117,
    "b": 205
  },
  "hsl": {
    "h": 215.676,
    "s": 59.677,
    "l": 51.373
  },
  "oklch": {
    "l": 0.5676,
    "c": 0.14975,
    "h": 258.1
  },
  "luminance": 0.18
}

Semantic roles & 50–950 ramp

primary

#3975CD

secondary

#D2B790

accent

#A345E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3975CD

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

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