#3A71CB#3A71CB

#3A71CB is a mid, vivid blue. Relative luminance 0.170; OKLCH L 55.8% C 0.151 H 259.8°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#3A71CB
RGB	rgb(58, 113, 203)
HSL	hsl(217, 58%, 51%)
HSV	hsv(217, 71%, 80%)
CMYK	cmyk(71.4%, 44.3%, 0%, 20.4%)
CIE-LAB	lab(48.28, 12.29, -52.03)
CIE-LCH	lch(48.28, 53.47, 283.29°)
OKLab	oklab(55.8% -0.0269 -0.1489)
OKLCH	oklch(55.8% 0.151 259.8)
XYZ	xyz(18.4257, 17.0196, 58.8024)
Luminance	0.1702 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A71CB #CB943A

analogous

#3ABACB #3A71CB #4B3ACB

triadic

#3A71CB #CB3A71 #71CB3A

tetradic

#3A71CB #CB3ABA #CB943A #3ACB4B

square

#3A71CB #CB3ABA #CB943A #3ACB4B

split-complementary

#3A71CB #CB4B3A #BACB3A

monochromatic

#1D3C6E #2A569E #3A71CB #6A94D8 #9BB7E5

Accessibility & contrast

On white

4.77

#3A71CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#3A71CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3A71CB

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A71CB	#FFFFFF	#000000	##FFFFFF
##3A71CB	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#447ACE

Deuteranopia (green-blind)

#286CC9

Tritanopia (blue-blind)

#008694

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3a71cb;
/* rgb */ color: rgb(58, 113, 203);
/* oklch */ color: oklch(55.8% 0.151 259.8);

Tailwind

colors: {
  custom: {
    50: '#8299db',
    500: '#3a71cb',
    950: '#000000',
  },
}

SCSS

$custom: #3a71cb;
$custom-light: #8299db;
$custom-dark: #000000;

JSON

{
  "hex": "#3a71cb",
  "rgb": {
    "r": 58,
    "g": 113,
    "b": 203
  },
  "hsl": {
    "h": 217.241,
    "s": 58.233,
    "l": 51.176
  },
  "oklch": {
    "l": 0.55798,
    "c": 0.15134,
    "h": 259.8
  },
  "luminance": 0.17022
}

Semantic roles & 50–950 ramp

primary

#3A71CB

secondary

#D0B890

accent

#A746E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3A71CB

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

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