#3959A8#3959A8

#3959A8 is a mid, vivid blue. Relative luminance 0.108; OKLCH L 48.2% C 0.132 H 265.2°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#3959A8
RGB	rgb(57, 89, 168)
HSL	hsl(223, 49%, 44%)
HSV	hsv(223, 66%, 66%)
CMYK	cmyk(66.1%, 47%, 0%, 34.1%)
CIE-LAB	lab(39.31, 14.67, -46.04)
CIE-LCH	lch(39.31, 48.32, 287.67°)
OKLab	oklab(48.19% -0.011 -0.1317)
OKLCH	oklch(48.19% 0.132 265.2)
XYZ	xyz(12.3251, 10.8406, 38.4811)
Luminance	0.1084 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3959A8 #A88839

analogous

#3991A8 #3959A8 #5139A8

triadic

#3959A8 #A83959 #59A839

tetradic

#3959A8 #A83991 #A88839 #39A851

square

#3959A8 #A83991 #A88839 #39A851

split-complementary

#3959A8 #A85139 #91A839

monochromatic

#1A294D #29417A #3959A8 #5878C6 #869DD6

Accessibility & contrast

On white

6.63

#3959A8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#3959A8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3959A8

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3959A8	#FFFFFF	#000000	##FFFFFF
##3959A8	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3162AB

Deuteranopia (green-blind)

#1C58A6

Tritanopia (blue-blind)

#006B78

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3959a8;
/* rgb */ color: rgb(57, 89, 168);
/* oklch */ color: oklch(48.2% 0.132 265.2);

Tailwind

colors: {
  custom: {
    50: '#7b87c2',
    500: '#3959a8',
    950: '#000000',
  },
}

SCSS

$custom: #3959a8;
$custom-light: #7b87c2;
$custom-dark: #000000;

JSON

{
  "hex": "#3959a8",
  "rgb": {
    "r": 57,
    "g": 89,
    "b": 168
  },
  "hsl": {
    "h": 222.703,
    "s": 49.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.48191,
    "c": 0.13216,
    "h": 265.2
  },
  "luminance": 0.10842
}

Semantic roles & 50–950 ramp

primary

#3959A8

secondary

#C0AD7D

accent

#B14FD9

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #3959A8

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

Preview Lab → · Contrast checker → · Palette generator →