#3959D5#3959D5

#3959D5 is a mid, vivid blue. Relative luminance 0.128; OKLCH L 51.6% C 0.194 H 267.9°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#3959D5
RGB	rgb(57, 89, 213)
HSL	hsl(228, 65%, 53%)
HSV	hsv(228, 73%, 84%)
CMYK	cmyk(73.2%, 58.2%, 0%, 16.5%)
CIE-LAB	lab(42.49, 31.08, -67.13)
CIE-LCH	lch(42.49, 73.98, 294.84°)
OKLab	oklab(51.6% -0.0073 -0.1937)
OKLCH	oklch(51.6% 0.194 267.9)
XYZ	xyz(17.2658, 12.8169, 64.5018)
Luminance	0.1282 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3959D5 #D5B539

analogous

#39A7D5 #3959D5 #6739D5

triadic

#3959D5 #D53959 #59D539

tetradic

#3959D5 #D539A7 #D5B539 #39D567

square

#3959D5 #D539A7 #D5B539 #39D567

split-complementary

#3959D5 #D56739 #A7D539

monochromatic

#1A2E7A #2540AC #3959D5 #6B83E0 #9EAEEA

Accessibility & contrast

On white

5.89

#3959D5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#3959D5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3959D5

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3959D5	#FFFFFF	#000000	##FFFFFF
##3959D5	1.00	5.89	3.56	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006CD9

Deuteranopia (green-blind)

#005DD3

Tritanopia (blue-blind)

#00788E

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3959d5;
/* rgb */ color: rgb(57, 89, 213);
/* oklch */ color: oklch(51.6% 0.194 267.9);

Tailwind

colors: {
  custom: {
    50: '#8487e3',
    500: '#3959d5',
    950: '#000000',
  },
}

SCSS

$custom: #3959d5;
$custom-light: #8487e3;
$custom-dark: #000000;

JSON

{
  "hex": "#3959d5",
  "rgb": {
    "r": 57,
    "g": 89,
    "b": 213
  },
  "hsl": {
    "h": 227.692,
    "s": 65,
    "l": 52.941
  },
  "oklch": {
    "l": 0.51598,
    "c": 0.19388,
    "h": 267.9
  },
  "luminance": 0.12819
}

Semantic roles & 50–950 ramp

primary

#3959D5

secondary

#D7C993

accent

#C540E8

background

#F8F8FE

surface

#F0EFFC

border

#CBCAD5

text

#0D0B16

muted

#7D7C84

Preview Lab

Preview with #3959D5

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

Preview Lab → · Contrast checker → · Palette generator →