#3B73BC#3B73BC

#3B73BC is a mid, vivid cyan. Relative luminance 0.168; OKLCH L 55.3% C 0.129 H 256.0°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#3B73BC
RGB	rgb(59, 115, 188)
HSL	hsl(214, 52%, 48%)
HSV	hsv(214, 69%, 74%)
CMYK	cmyk(68.6%, 38.8%, 0%, 26.3%)
CIE-LAB	lab(48.03, 5.75, -43.81)
CIE-LCH	lch(48.03, 44.19, 277.48°)
OKLab	oklab(55.33% -0.0312 -0.1247)
OKLCH	oklch(55.33% 0.129 256)
XYZ	xyz(17.0082, 16.8204, 49.9175)
Luminance	0.1682 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B73BC #BC843B

analogous

#3BB3BC #3B73BC #433BBC

triadic

#3B73BC #BC3B73 #73BC3B

tetradic

#3B73BC #BC3BB3 #BC843B #3BBC43

square

#3B73BC #BC3BB3 #BC843B #3BBC43

split-complementary

#3B73BC #BC433B #B3BC3B

monochromatic

#1E3A5F #2C578D #3B73BC #6593CF #94B4DD

Accessibility & contrast

On white

4.81

#3B73BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.36

#3B73BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B73BC

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B73BC	#FFFFFF	#000000	##FFFFFF
##3B73BC	1.00	4.81	4.36	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.36	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5279BF

Deuteranopia (green-blind)

#3F6CBB

Tritanopia (blue-blind)

#00848E

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3b73bc;
/* rgb */ color: rgb(59, 115, 188);
/* oklch */ color: oklch(55.3% 0.129 256.0);

Tailwind

colors: {
  custom: {
    50: '#7f9ad0',
    500: '#3b73bc',
    950: '#000000',
  },
}

SCSS

$custom: #3b73bc;
$custom-light: #7f9ad0;
$custom-dark: #000000;

JSON

{
  "hex": "#3b73bc",
  "rgb": {
    "r": 59,
    "g": 115,
    "b": 188
  },
  "hsl": {
    "h": 213.953,
    "s": 52.227,
    "l": 48.431
  },
  "oklch": {
    "l": 0.55334,
    "c": 0.12859,
    "h": 256
  },
  "luminance": 0.16822
}

Semantic roles & 50–950 ramp

primary

#3B73BC

secondary

#C9AE8A

accent

#9D4CDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3B73BC

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

Preview Lab → · Contrast checker → · Palette generator →