#3953CB#3953CB

#3953CB is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.6% C 0.188 H 269.1°. Best body text is #FFFFFF at 6.41:1 contrast (WCAG AA passes).

Color values

HEX	#3953CB
RGB	rgb(57, 83, 203)
HSL	hsl(229, 58%, 51%)
HSV	hsv(229, 72%, 80%)
CMYK	cmyk(71.9%, 59.1%, 0%, 20.4%)
CIE-LAB	lab(40.19, 31.30, -65.12)
CIE-LCH	lch(40.19, 72.25, 295.67°)
OKLab	oklab(49.64% -0.0031 -0.1879)
OKLCH	oklch(49.64% 0.188 269.1)
XYZ	xyz(15.5564, 11.3666, 57.8625)
Luminance	0.1137 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3953CB #CBB139

analogous

#399CCB #3953CB #6839CB

triadic

#3953CB #CB3953 #53CB39

tetradic

#3953CB #CB399C #CBB139 #39CB68

square

#3953CB #CB399C #CBB139 #39CB68

split-complementary

#3953CB #CB6839 #9CCB39

monochromatic

#1D2B6D #293E9D #3953CB #697DD8 #9AA7E4

Accessibility & contrast

On white

6.41

#3953CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#3953CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3953CB

6.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3953CB	#FFFFFF	#000000	##FFFFFF
##3953CB	1.00	6.41	3.27	6.41
#FFFFFF	6.41	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066CF

Deuteranopia (green-blind)

#0058C9

Tritanopia (blue-blind)

#007187

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3953cb;
/* rgb */ color: rgb(57, 83, 203);
/* oklch */ color: oklch(49.6% 0.188 269.1);

Tailwind

colors: {
  custom: {
    50: '#8383dc',
    500: '#3953cb',
    950: '#000000',
  },
}

SCSS

$custom: #3953cb;
$custom-light: #8383dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3953cb",
  "rgb": {
    "r": 57,
    "g": 83,
    "b": 203
  },
  "hsl": {
    "h": 229.315,
    "s": 58.4,
    "l": 50.98
  },
  "oklch": {
    "l": 0.49644,
    "c": 0.18793,
    "h": 269.1
  },
  "luminance": 0.11368
}

Semantic roles & 50–950 ramp

primary

#3953CB

secondary

#D0C590

accent

#C646E2

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0A15

muted

#7D7C83

Preview Lab

Preview with #3953CB

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

Preview Lab → · Contrast checker → · Palette generator →