#3959AC#3959AC

#3959AC is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.5% C 0.138 H 265.7°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#3959AC
RGB	rgb(57, 89, 172)
HSL	hsl(223, 50%, 45%)
HSV	hsv(223, 67%, 67%)
CMYK	cmyk(66.9%, 48.3%, 0%, 32.5%)
CIE-LAB	lab(39.57, 16.13, -48.00)
CIE-LCH	lch(39.57, 50.64, 288.57°)
OKLab	oklab(48.47% -0.0104 -0.1375)
OKLCH	oklch(48.47% 0.138 265.7)
XYZ	xyz(12.7035, 10.9920, 40.4739)
Luminance	0.1099 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3959AC #AC8C39

analogous

#3993AC #3959AC #5239AC

triadic

#3959AC #AC3959 #59AC39

tetradic

#3959AC #AC3993 #AC8C39 #39AC52

square

#3959AC #AC3993 #AC8C39 #39AC52

split-complementary

#3959AC #AC5239 #93AC39

monochromatic

#1B2950 #2A417E #3959AC #5A79C8 #889ED8

Accessibility & contrast

On white

6.57

#3959AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#3959AC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3959AC

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3959AC	#FFFFFF	#000000	##FFFFFF
##3959AC	1.00	6.57	3.20	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E63AF

Deuteranopia (green-blind)

#1458AA

Tritanopia (blue-blind)

#006C7A

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3959ac;
/* rgb */ color: rgb(57, 89, 172);
/* oklch */ color: oklch(48.5% 0.138 265.7);

Tailwind

colors: {
  custom: {
    50: '#7c87c5',
    500: '#3959ac',
    950: '#000000',
  },
}

SCSS

$custom: #3959ac;
$custom-light: #7c87c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3959ac",
  "rgb": {
    "r": 57,
    "g": 89,
    "b": 172
  },
  "hsl": {
    "h": 223.304,
    "s": 50.218,
    "l": 44.902
  },
  "oklch": {
    "l": 0.4847,
    "c": 0.13786,
    "h": 265.7
  },
  "luminance": 0.10993
}

Semantic roles & 50–950 ramp

primary

#3959AC

secondary

#C2AF7F

accent

#B34EDA

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3959AC

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

Preview Lab → · Contrast checker → · Palette generator →