#3B75BB#3B75BB

#3B75BB is a mid, vivid cyan. Relative luminance 0.172; OKLCH L 55.7% C 0.125 H 254.5°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#3B75BB
RGB	rgb(59, 117, 187)
HSL	hsl(213, 52%, 48%)
HSV	hsv(213, 68%, 73%)
CMYK	cmyk(68.4%, 37.4%, 0%, 26.7%)
CIE-LAB	lab(48.56, 4.16, -42.40)
CIE-LCH	lch(48.56, 42.61, 275.61°)
OKLab	oklab(55.73% -0.0334 -0.1206)
OKLCH	oklch(55.73% 0.125 254.5)
XYZ	xyz(17.1313, 17.2385, 49.4286)
Luminance	0.1724 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B75BB #BB813B

analogous

#3BB5BB #3B75BB #413BBB

triadic

#3B75BB #BB3B75 #75BB3B

tetradic

#3B75BB #BB3BB5 #BB813B #3BBB41

square

#3B75BB #BB3BB5 #BB813B #3BBB41

split-complementary

#3B75BB #BB413B #B5BB3B

monochromatic

#1E3B5E #2C588C #3B75BB #6595CE #93B5DD

Accessibility & contrast

On white

4.72

#3B75BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#3B75BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B75BB

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B75BB	#FFFFFF	#000000	##FFFFFF
##3B75BB	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#567ABE

Deuteranopia (green-blind)

#436EBA

Tritanopia (blue-blind)

#00858F

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3b75bb;
/* rgb */ color: rgb(59, 117, 187);
/* oklch */ color: oklch(55.7% 0.125 254.5);

Tailwind

colors: {
  custom: {
    50: '#7f9cd0',
    500: '#3b75bb',
    950: '#000000',
  },
}

SCSS

$custom: #3b75bb;
$custom-light: #7f9cd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3b75bb",
  "rgb": {
    "r": 59,
    "g": 117,
    "b": 187
  },
  "hsl": {
    "h": 212.813,
    "s": 52.033,
    "l": 48.235
  },
  "oklch": {
    "l": 0.55727,
    "c": 0.12512,
    "h": 254.5
  },
  "luminance": 0.1724
}

Semantic roles & 50–950 ramp

primary

#3B75BB

secondary

#C8AC8A

accent

#9B4CDB

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3B75BB

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

Preview Lab → · Contrast checker → · Palette generator →