#3E73CB#3E73CB

#3E73CB is a mid, vivid blue. Relative luminance 0.176; OKLCH L 56.4% C 0.148 H 260.0°. Best body text is #FFFFFF at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#3E73CB
RGB	rgb(62, 115, 203)
HSL	hsl(217, 58%, 52%)
HSV	hsv(217, 69%, 80%)
CMYK	cmyk(69.5%, 43.3%, 0%, 20.4%)
CIE-LAB	lab(49.00, 11.62, -50.88)
CIE-LCH	lch(49.00, 52.19, 282.87°)
OKLab	oklab(56.39% -0.0257 -0.1454)
OKLCH	oklch(56.39% 0.148 260)
XYZ	xyz(18.8930, 17.5954, 58.8889)
Luminance	0.1760 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3E73CB #CB963E

analogous

#3EB9CB #3E73CB #503ECB

triadic

#3E73CB #CB3E73 #73CB3E

tetradic

#3E73CB #CB3EB9 #CB963E #3ECB50

square

#3E73CB #CB3EB9 #CB963E #3ECB50

split-complementary

#3E73CB #CB503E #B9CB3E

monochromatic

#1E3D70 #2B57A1 #3E73CB #6E96D8 #9EB9E5

Accessibility & contrast

On white

4.65

#3E73CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#3E73CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3E73CB

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E73CB	#FFFFFF	#000000	##FFFFFF
##3E73CB	1.00	4.65	4.52	4.65
#FFFFFF	4.65	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#487BCE

Deuteranopia (green-blind)

#306EC9

Tritanopia (blue-blind)

#008795

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3e73cb;
/* rgb */ color: rgb(62, 115, 203);
/* oklch */ color: oklch(56.4% 0.148 260.0);

Tailwind

colors: {
  custom: {
    50: '#839adb',
    500: '#3e73cb',
    950: '#000000',
  },
}

SCSS

$custom: #3e73cb;
$custom-light: #839adb;
$custom-dark: #000000;

JSON

{
  "hex": "#3e73cb",
  "rgb": {
    "r": 62,
    "g": 115,
    "b": 203
  },
  "hsl": {
    "h": 217.447,
    "s": 57.551,
    "l": 51.961
  },
  "oklch": {
    "l": 0.56394,
    "c": 0.14769,
    "h": 260
  },
  "luminance": 0.17597
}

Semantic roles & 50–950 ramp

primary

#3E73CB

secondary

#D1BA94

accent

#A747E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3E73CB

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

Preview Lab → · Contrast checker → · Palette generator →