#3A75CC#3A75CC

#3A75CC is a mid, vivid blue. Relative luminance 0.180; OKLCH L 56.7% C 0.148 H 258.2°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#3A75CC
RGB	rgb(58, 117, 204)
HSL	hsl(216, 59%, 51%)
HSV	hsv(216, 72%, 80%)
CMYK	cmyk(71.6%, 42.6%, 0%, 20%)
CIE-LAB	lab(49.47, 10.16, -50.71)
CIE-LCH	lch(49.47, 51.71, 281.33°)
OKLab	oklab(56.73% -0.0303 -0.145)
OKLCH	oklch(56.73% 0.148 258.2)
XYZ	xyz(19.0013, 17.9797, 59.5841)
Luminance	0.1798 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3A75CC #CC913A

analogous

#3ABECC #3A75CC #483ACC

triadic

#3A75CC #CC3A75 #75CC3A

tetradic

#3A75CC #CC3ABE #CC913A #3ACC48

square

#3A75CC #CC3ABE #CC913A #3ACC48

split-complementary

#3A75CC #CC483A #BECC3A

monochromatic

#1D3E6F #2959A0 #3A75CC #6B97D9 #9BB9E5

Accessibility & contrast

On white

4.57

#3A75CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#3A75CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3A75CC

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3A75CC	#FFFFFF	#000000	##000000
##3A75CC	1.00	4.57	4.60	4.60
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B7DCF

Deuteranopia (green-blind)

#316FCA

Tritanopia (blue-blind)

#008996

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3a75cc;
/* rgb */ color: rgb(58, 117, 204);
/* oklch */ color: oklch(56.7% 0.148 258.2);

Tailwind

colors: {
  custom: {
    50: '#829cdc',
    500: '#3a75cc',
    950: '#000000',
  },
}

SCSS

$custom: #3a75cc;
$custom-light: #829cdc;
$custom-dark: #000000;

JSON

{
  "hex": "#3a75cc",
  "rgb": {
    "r": 58,
    "g": 117,
    "b": 204
  },
  "hsl": {
    "h": 215.753,
    "s": 58.871,
    "l": 51.373
  },
  "oklch": {
    "l": 0.56734,
    "c": 0.14809,
    "h": 258.2
  },
  "luminance": 0.17982
}

Semantic roles & 50–950 ramp

primary

#3A75CC

secondary

#D1B791

accent

#A346E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3A75CC

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

Preview Lab → · Contrast checker → · Palette generator →