#3957A2#3957A2

#3957A2 is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.3% C 0.126 H 265.5°. Best body text is #FFFFFF at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#3957A2
RGB	rgb(57, 87, 162)
HSL	hsl(223, 48%, 43%)
HSV	hsv(223, 65%, 64%)
CMYK	cmyk(64.8%, 46.3%, 0%, 36.5%)
CIE-LAB	lab(38.36, 13.79, -43.99)
CIE-LCH	lch(38.36, 46.10, 287.41°)
OKLab	oklab(47.35% -0.01 -0.1257)
OKLCH	oklch(47.35% 0.126 265.5)
XYZ	xyz(11.6149, 10.2938, 35.5502)
Luminance	0.1029 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3957A2 #A28439

analogous

#398BA2 #3957A2 #4F39A2

triadic

#3957A2 #A23957 #57A239

tetradic

#3957A2 #A2398B #A28439 #39A24F

square

#3957A2 #A2398B #A28439 #39A24F

split-complementary

#3957A2 #A24F39 #8BA239

monochromatic

#192647 #293F75 #3957A2 #5574C3 #8299D3

Accessibility & contrast

On white

6.86

#3957A2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#3957A2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3957A2

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3957A2	#FFFFFF	#000000	##FFFFFF
##3957A2	1.00	6.86	3.06	6.86
#FFFFFF	6.86	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#335FA5

Deuteranopia (green-blind)

#2056A0

Tritanopia (blue-blind)

#006874

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3957a2;
/* rgb */ color: rgb(57, 87, 162);
/* oklch */ color: oklch(47.3% 0.126 265.5);

Tailwind

colors: {
  custom: {
    50: '#7a86be',
    500: '#3957a2',
    950: '#000000',
  },
}

SCSS

$custom: #3957a2;
$custom-light: #7a86be;
$custom-dark: #000000;

JSON

{
  "hex": "#3957a2",
  "rgb": {
    "r": 57,
    "g": 87,
    "b": 162
  },
  "hsl": {
    "h": 222.857,
    "s": 47.945,
    "l": 42.941
  },
  "oklch": {
    "l": 0.47345,
    "c": 0.12608,
    "h": 265.5
  },
  "luminance": 0.10295
}

Semantic roles & 50–950 ramp

primary

#3957A2

secondary

#BDAA7A

accent

#B150D8

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #3957A2

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

Preview Lab → · Contrast checker → · Palette generator →