#3959AD#3959AD

#3959AD is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.5% C 0.139 H 265.8°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#3959AD
RGB	rgb(57, 89, 173)
HSL	hsl(223, 50%, 45%)
HSV	hsv(223, 67%, 68%)
CMYK	cmyk(67.1%, 48.6%, 0%, 32.2%)
CIE-LAB	lab(39.63, 16.49, -48.48)
CIE-LCH	lch(39.63, 51.21, 288.79°)
OKLab	oklab(48.54% -0.0103 -0.1389)
OKLCH	oklch(48.54% 0.139 265.8)
XYZ	xyz(12.7999, 11.0305, 40.9816)
Luminance	0.1103 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3959AD #AD8D39

analogous

#3993AD #3959AD #5339AD

triadic

#3959AD #AD3959 #59AD39

tetradic

#3959AD #AD3993 #AD8D39 #39AD53

square

#3959AD #AD3993 #AD8D39 #39AD53

split-complementary

#3959AD #AD5339 #93AD39

monochromatic

#1B2A51 #2A417F #3959AD #5A79C9 #889ED8

Accessibility & contrast

On white

6.55

#3959AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#3959AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3959AD

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3959AD	#FFFFFF	#000000	##FFFFFF
##3959AD	1.00	6.55	3.21	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D63B0

Deuteranopia (green-blind)

#1158AB

Tritanopia (blue-blind)

#006D7A

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3959ad;
/* rgb */ color: rgb(57, 89, 173);
/* oklch */ color: oklch(48.5% 0.139 265.8);

Tailwind

colors: {
  custom: {
    50: '#7c87c6',
    500: '#3959ad',
    950: '#000000',
  },
}

SCSS

$custom: #3959ad;
$custom-light: #7c87c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3959ad",
  "rgb": {
    "r": 57,
    "g": 89,
    "b": 173
  },
  "hsl": {
    "h": 223.448,
    "s": 50.435,
    "l": 45.098
  },
  "oklch": {
    "l": 0.4854,
    "c": 0.13928,
    "h": 265.8
  },
  "luminance": 0.11032
}

Semantic roles & 50–950 ramp

primary

#3959AD

secondary

#C2B080

accent

#B34EDA

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #3959AD

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

Preview Lab → · Contrast checker → · Palette generator →