#3957C2#3957C2

#3957C2 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.7% C 0.171 H 267.8°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#3957C2
RGB	rgb(57, 87, 194)
HSL	hsl(227, 55%, 49%)
HSV	hsv(227, 71%, 76%)
CMYK	cmyk(70.6%, 55.2%, 0%, 23.9%)
CIE-LAB	lab(40.54, 25.47, -59.33)
CIE-LCH	lch(40.54, 64.56, 293.23°)
OKLab	oklab(49.69% -0.0065 -0.1708)
OKLCH	oklch(49.69% 0.171 267.8)
XYZ	xyz(14.8298, 11.5798, 52.4821)
Luminance	0.1158 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3957C2 #C2A439

analogous

#399CC2 #3957C2 #5F39C2

triadic

#3957C2 #C23957 #57C239

tetradic

#3957C2 #C2399C #C2A439 #39C25F

square

#3957C2 #C2399C #C2A439 #39C25F

split-complementary

#3957C2 #C25F39 #9CC239

monochromatic

#1D2D63 #2B4293 #3957C2 #667ED2 #95A6E0

Accessibility & contrast

On white

6.33

#3957C2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#3957C2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3957C2

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3957C2	#FFFFFF	#000000	##FFFFFF
##3957C2	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066C6

Deuteranopia (green-blind)

#005AC0

Tritanopia (blue-blind)

#007184

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #3957c2;
/* rgb */ color: rgb(57, 87, 194);
/* oklch */ color: oklch(49.7% 0.171 267.8);

Tailwind

colors: {
  custom: {
    50: '#8186d5',
    500: '#3957c2',
    950: '#000000',
  },
}

SCSS

$custom: #3957c2;
$custom-light: #8186d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3957c2",
  "rgb": {
    "r": 57,
    "g": 87,
    "b": 194
  },
  "hsl": {
    "h": 226.861,
    "s": 54.582,
    "l": 49.216
  },
  "oklch": {
    "l": 0.49691,
    "c": 0.17095,
    "h": 267.8
  },
  "luminance": 0.11581
}

Semantic roles & 50–950 ramp

primary

#3957C2

secondary

#CBBD8B

accent

#BE4ADE

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0C0B14

muted

#7D7C83

Preview Lab

Preview with #3957C2

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

Preview Lab → · Contrast checker → · Palette generator →