#3958D1#3958D1

#3958D1 is a mid, vivid blue. Relative luminance 0.125; OKLCH L 51.1% C 0.190 H 268.0°. Best body text is #FFFFFF at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#3958D1
RGB	rgb(57, 88, 209)
HSL	hsl(228, 62%, 52%)
HSV	hsv(228, 73%, 82%)
CMYK	cmyk(72.7%, 57.9%, 0%, 18%)
CIE-LAB	lab(41.92, 30.27, -65.75)
CIE-LCH	lch(41.92, 72.39, 294.72°)
OKLab	oklab(51.08% -0.0066 -0.1897)
OKLCH	oklch(51.08% 0.19 268)
XYZ	xyz(16.6817, 12.4510, 61.8334)
Luminance	0.1245 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3958D1 #D1B239

analogous

#39A4D1 #3958D1 #6639D1

triadic

#3958D1 #D13958 #58D139

tetradic

#3958D1 #D139A4 #D1B239 #39D166

square

#3958D1 #D139A4 #D1B239 #39D166

split-complementary

#3958D1 #D16639 #A4D139

monochromatic

#1B2D75 #2741A6 #3958D1 #6B82DD #9CACE8

Accessibility & contrast

On white

6.02

#3958D1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#3958D1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3958D1

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3958D1	#FFFFFF	#000000	##FFFFFF
##3958D1	1.00	6.02	3.49	6.02
#FFFFFF	6.02	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006AD5

Deuteranopia (green-blind)

#005CCF

Tritanopia (blue-blind)

#00768C

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3958d1;
/* rgb */ color: rgb(57, 88, 209);
/* oklch */ color: oklch(51.1% 0.190 268.0);

Tailwind

colors: {
  custom: {
    50: '#8486e0',
    500: '#3958d1',
    950: '#000000',
  },
}

SCSS

$custom: #3958d1;
$custom-light: #8486e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3958d1",
  "rgb": {
    "r": 57,
    "g": 88,
    "b": 209
  },
  "hsl": {
    "h": 227.763,
    "s": 62.295,
    "l": 52.157
  },
  "oklch": {
    "l": 0.51082,
    "c": 0.18982,
    "h": 268
  },
  "luminance": 0.12453
}

Semantic roles & 50–950 ramp

primary

#3958D1

secondary

#D4C792

accent

#C442E5

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3958D1

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

Preview Lab → · Contrast checker → · Palette generator →