#3956CB#3956CB

#3956CB is a mid, vivid blue. Relative luminance 0.118; OKLCH L 50.2% C 0.184 H 268.3°. Best body text is #FFFFFF at 6.24:1 contrast (WCAG AA passes).

Color values

HEX	#3956CB
RGB	rgb(57, 86, 203)
HSL	hsl(228, 58%, 51%)
HSV	hsv(228, 72%, 80%)
CMYK	cmyk(71.9%, 57.6%, 0%, 20.4%)
CIE-LAB	lab(40.95, 29.38, -63.87)
CIE-LCH	lch(40.95, 70.31, 294.70°)
OKLab	oklab(50.21% -0.0053 -0.1842)
OKLCH	oklch(50.21% 0.184 268.3)
XYZ	xyz(15.7909, 11.8356, 57.9406)
Luminance	0.1184 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3956CB #CBAE39

analogous

#399FCB #3956CB #6539CB

triadic

#3956CB #CB3956 #56CB39

tetradic

#3956CB #CB399F #CBAE39 #39CB65

square

#3956CB #CB399F #CBAE39 #39CB65

split-complementary

#3956CB #CB6539 #9FCB39

monochromatic

#1D2D6D #29409D #3956CB #697FD8 #9AA9E4

Accessibility & contrast

On white

6.24

#3956CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#3956CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3956CB

6.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3956CB	#FFFFFF	#000000	##FFFFFF
##3956CB	1.00	6.24	3.37	6.24
#FFFFFF	6.24	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068CF

Deuteranopia (green-blind)

#005AC9

Tritanopia (blue-blind)

#007388

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #3956cb;
/* rgb */ color: rgb(57, 86, 203);
/* oklch */ color: oklch(50.2% 0.184 268.3);

Tailwind

colors: {
  custom: {
    50: '#8385dc',
    500: '#3956cb',
    950: '#000000',
  },
}

SCSS

$custom: #3956cb;
$custom-light: #8385dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3956cb",
  "rgb": {
    "r": 57,
    "g": 86,
    "b": 203
  },
  "hsl": {
    "h": 228.082,
    "s": 58.4,
    "l": 50.98
  },
  "oklch": {
    "l": 0.50212,
    "c": 0.18429,
    "h": 268.3
  },
  "luminance": 0.11837
}

Semantic roles & 50–950 ramp

primary

#3956CB

secondary

#D0C390

accent

#C346E2

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3956CB

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

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