#3B57BD#3B57BD

#3B57BD is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.4% C 0.164 H 268.3°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#3B57BD
RGB	rgb(59, 87, 189)
HSL	hsl(227, 52%, 49%)
HSV	hsv(227, 69%, 74%)
CMYK	cmyk(68.8%, 54%, 0%, 25.9%)
CIE-LAB	lab(40.28, 23.94, -56.84)
CIE-LCH	lch(40.28, 61.67, 292.84°)
OKLab	oklab(49.41% -0.005 -0.1635)
OKLCH	oklch(49.41% 0.164 268.3)
XYZ	xyz(14.3940, 11.4189, 49.5797)
Luminance	0.1142 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B57BD #BDA13B

analogous

#3B98BD #3B57BD #603BBD

triadic

#3B57BD #BD3B57 #57BD3B

tetradic

#3B57BD #BD3B98 #BDA13B #3BBD60

square

#3B57BD #BD3B98 #BDA13B #3BBD60

split-complementary

#3B57BD #BD603B #98BD3B

monochromatic

#1E2C60 #2C428E #3B57BD #667DCF #95A4DE

Accessibility & contrast

On white

6.39

#3B57BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#3B57BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B57BD

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B57BD	#FFFFFF	#000000	##FFFFFF
##3B57BD	1.00	6.39	3.28	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0965C1

Deuteranopia (green-blind)

#0059BB

Tritanopia (blue-blind)

#006F81

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #3b57bd;
/* rgb */ color: rgb(59, 87, 189);
/* oklch */ color: oklch(49.4% 0.164 268.3);

Tailwind

colors: {
  custom: {
    50: '#8086d2',
    500: '#3b57bd',
    950: '#000000',
  },
}

SCSS

$custom: #3b57bd;
$custom-light: #8086d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3b57bd",
  "rgb": {
    "r": 59,
    "g": 87,
    "b": 189
  },
  "hsl": {
    "h": 227.077,
    "s": 52.419,
    "l": 48.627
  },
  "oklch": {
    "l": 0.49405,
    "c": 0.16354,
    "h": 268.3
  },
  "luminance": 0.1142
}

Semantic roles & 50–950 ramp

primary

#3B57BD

secondary

#C9BC8B

accent

#BD4CDC

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #3B57BD

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

Preview Lab → · Contrast checker → · Palette generator →