#3B75CC#3B75CC

#3B75CC is a mid, vivid blue. Relative luminance 0.180; OKLCH L 56.8% C 0.148 H 258.4°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#3B75CC
RGB	rgb(59, 117, 204)
HSL	hsl(216, 59%, 52%)
HSV	hsv(216, 71%, 80%)
CMYK	cmyk(71.1%, 42.6%, 0%, 20%)
CIE-LAB	lab(49.51, 10.30, -50.65)
CIE-LCH	lch(49.51, 51.68, 281.49°)
OKLab	oklab(56.77% -0.0296 -0.1448)
OKLCH	oklch(56.77% 0.148 258.4)
XYZ	xyz(19.0601, 18.0100, 59.5868)
Luminance	0.1801 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B75CC #CC923B

analogous

#3BBECC #3B75CC #4A3BCC

triadic

#3B75CC #CC3B75 #75CC3B

tetradic

#3B75CC #CC3BBE #CC923B #3BCC4A

square

#3B75CC #CC3BBE #CC923B #3BCC4A

split-complementary

#3B75CC #CC4A3B #BECC3B

monochromatic

#1D3E70 #2A59A0 #3B75CC #6C97D9 #9CB9E5

Accessibility & contrast

On white

4.56

#3B75CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#3B75CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B75CC

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B75CC	#FFFFFF	#000000	##000000
##3B75CC	1.00	4.56	4.60	4.60
#FFFFFF	4.56	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)

#3270CA

Tritanopia (blue-blind)

#008996

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3b75cc;
/* rgb */ color: rgb(59, 117, 204);
/* oklch */ color: oklch(56.8% 0.148 258.4);

Tailwind

colors: {
  custom: {
    50: '#829cdc',
    500: '#3b75cc',
    950: '#000000',
  },
}

SCSS

$custom: #3b75cc;
$custom-light: #829cdc;
$custom-dark: #000000;

JSON

{
  "hex": "#3b75cc",
  "rgb": {
    "r": 59,
    "g": 117,
    "b": 204
  },
  "hsl": {
    "h": 216,
    "s": 58.704,
    "l": 51.569
  },
  "oklch": {
    "l": 0.56772,
    "c": 0.14776,
    "h": 258.4
  },
  "luminance": 0.18012
}

Semantic roles & 50–950 ramp

primary

#3B75CC

secondary

#D1B892

accent

#A446E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3B75CC

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

Preview Lab → · Contrast checker → · Palette generator →