#3C73CB#3C73CB

#3C73CB is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.3% C 0.148 H 259.4°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#3C73CB
RGB	rgb(60, 115, 203)
HSL	hsl(217, 58%, 52%)
HSV	hsv(217, 70%, 80%)
CMYK	cmyk(70.4%, 43.3%, 0%, 20.4%)
CIE-LAB	lab(48.92, 11.33, -51.01)
CIE-LCH	lch(48.92, 52.25, 282.52°)
OKLab	oklab(56.31% -0.0272 -0.1458)
OKLCH	oklch(56.31% 0.148 259.4)
XYZ	xyz(18.7698, 17.5319, 58.8831)
Luminance	0.1753 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3C73CB #CB943C

analogous

#3CBBCB #3C73CB #4D3CCB

triadic

#3C73CB #CB3C73 #73CB3C

tetradic

#3C73CB #CB3CBB #CB943C #3CCB4D

square

#3C73CB #CB3CBB #CB943C #3CCB4D

split-complementary

#3C73CB #CB4D3C #BBCB3C

monochromatic

#1E3D6F #2A579F #3C73CB #6C96D8 #9DB8E5

Accessibility & contrast

On white

4.66

#3C73CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#3C73CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3C73CB

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3C73CB	#FFFFFF	#000000	##FFFFFF
##3C73CB	1.00	4.66	4.51	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#487BCE

Deuteranopia (green-blind)

#2F6EC9

Tritanopia (blue-blind)

#008795

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3c73cb;
/* rgb */ color: rgb(60, 115, 203);
/* oklch */ color: oklch(56.3% 0.148 259.4);

Tailwind

colors: {
  custom: {
    50: '#829adb',
    500: '#3c73cb',
    950: '#000000',
  },
}

SCSS

$custom: #3c73cb;
$custom-light: #829adb;
$custom-dark: #000000;

JSON

{
  "hex": "#3c73cb",
  "rgb": {
    "r": 60,
    "g": 115,
    "b": 203
  },
  "hsl": {
    "h": 216.923,
    "s": 57.895,
    "l": 51.569
  },
  "oklch": {
    "l": 0.56312,
    "c": 0.14837,
    "h": 259.4
  },
  "luminance": 0.17534
}

Semantic roles & 50–950 ramp

primary

#3C73CB

secondary

#D1B992

accent

#A647E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3C73CB

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

Preview Lab → · Contrast checker → · Palette generator →