#3958C9#3958C9

#3958C9 is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.4% C 0.179 H 267.8°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#3958C9
RGB	rgb(57, 88, 201)
HSL	hsl(227, 57%, 51%)
HSV	hsv(227, 72%, 79%)
CMYK	cmyk(71.6%, 56.2%, 0%, 21.2%)
CIE-LAB	lab(41.32, 27.37, -62.13)
CIE-LCH	lch(41.32, 67.89, 293.78°)
OKLab	oklab(50.44% -0.0069 -0.179)
OKLCH	oklch(50.44% 0.179 267.8)
XYZ	xyz(15.7160, 12.0647, 56.7475)
Luminance	0.1207 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3958C9 #C9AA39

analogous

#39A0C9 #3958C9 #6239C9

triadic

#3958C9 #C93958 #58C939

tetradic

#3958C9 #C939A0 #C9AA39 #39C962

square

#3958C9 #C939A0 #C9AA39 #39C962

split-complementary

#3958C9 #C96239 #A0C939

monochromatic

#1D2E6B #2A429B #3958C9 #6981D6 #99A9E3

Accessibility & contrast

On white

6.15

#3958C9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#3958C9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3958C9

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3958C9	#FFFFFF	#000000	##FFFFFF
##3958C9	1.00	6.15	3.41	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068CD

Deuteranopia (green-blind)

#005BC7

Tritanopia (blue-blind)

#007488

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3958c9;
/* rgb */ color: rgb(57, 88, 201);
/* oklch */ color: oklch(50.4% 0.179 267.8);

Tailwind

colors: {
  custom: {
    50: '#8286da',
    500: '#3958c9',
    950: '#000000',
  },
}

SCSS

$custom: #3958c9;
$custom-light: #8286da;
$custom-dark: #000000;

JSON

{
  "hex": "#3958c9",
  "rgb": {
    "r": 57,
    "g": 88,
    "b": 201
  },
  "hsl": {
    "h": 227.083,
    "s": 57.143,
    "l": 50.588
  },
  "oklch": {
    "l": 0.50438,
    "c": 0.17917,
    "h": 267.8
  },
  "luminance": 0.12066
}

Semantic roles & 50–950 ramp

primary

#3958C9

secondary

#CFC18F

accent

#BF47E0

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3958C9

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

Preview Lab → · Contrast checker → · Palette generator →