#3D75CC#3D75CC

#3D75CC is a mid, vivid blue. Relative luminance 0.181; OKLCH L 56.9% C 0.147 H 259.0°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#3D75CC
RGB	rgb(61, 117, 204)
HSL	hsl(217, 58%, 52%)
HSV	hsv(217, 70%, 80%)
CMYK	cmyk(70.1%, 42.6%, 0%, 20%)
CIE-LAB	lab(49.58, 10.59, -50.52)
CIE-LCH	lch(49.58, 51.62, 281.84°)
OKLab	oklab(56.85% -0.0281 -0.1444)
OKLCH	oklch(56.85% 0.147 259)
XYZ	xyz(19.1809, 18.0723, 59.5925)
Luminance	0.1807 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D75CC #CC943D

analogous

#3DBDCC #3D75CC #4C3DCC

triadic

#3D75CC #CC3D75 #75CC3D

tetradic

#3D75CC #CC3DBD #CC943D #3DCC4C

square

#3D75CC #CC3DBD #CC943D #3DCC4C

split-complementary

#3D75CC #CC4C3D #BDCC3D

monochromatic

#1E3E71 #2A59A1 #3D75CC #6D97D9 #9EBAE5

Accessibility & contrast

On white

4.55

#3D75CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#3D75CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3D75CC

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D75CC	#FFFFFF	#000000	##000000
##3D75CC	1.00	4.55	4.61	4.61
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B7DCF

Deuteranopia (green-blind)

#3370CA

Tritanopia (blue-blind)

#008996

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3d75cc;
/* rgb */ color: rgb(61, 117, 204);
/* oklch */ color: oklch(56.9% 0.147 259.0);

Tailwind

colors: {
  custom: {
    50: '#839cdc',
    500: '#3d75cc',
    950: '#000000',
  },
}

SCSS

$custom: #3d75cc;
$custom-light: #839cdc;
$custom-dark: #000000;

JSON

{
  "hex": "#3d75cc",
  "rgb": {
    "r": 61,
    "g": 117,
    "b": 204
  },
  "hsl": {
    "h": 216.503,
    "s": 58.367,
    "l": 51.961
  },
  "oklch": {
    "l": 0.56852,
    "c": 0.14708,
    "h": 259
  },
  "luminance": 0.18074
}

Semantic roles & 50–950 ramp

primary

#3D75CC

secondary

#D2B993

accent

#A546E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3D75CC

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

Preview Lab → · Contrast checker → · Palette generator →