#3B74BC#3B74BC

#3B74BC is a mid, vivid cyan. Relative luminance 0.171; OKLCH L 55.6% C 0.128 H 255.4°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#3B74BC
RGB	rgb(59, 116, 188)
HSL	hsl(213, 52%, 48%)
HSV	hsv(213, 69%, 74%)
CMYK	cmyk(68.6%, 38.3%, 0%, 26.3%)
CIE-LAB	lab(48.32, 5.14, -43.35)
CIE-LCH	lch(48.32, 43.66, 276.76°)
OKLab	oklab(55.56% -0.0321 -0.1234)
OKLCH	oklch(55.56% 0.128 255.4)
XYZ	xyz(17.1228, 17.0497, 49.9557)
Luminance	0.1705 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B74BC #BC833B

analogous

#3BB4BC #3B74BC #423BBC

triadic

#3B74BC #BC3B74 #74BC3B

tetradic

#3B74BC #BC3BB4 #BC833B #3BBC42

square

#3B74BC #BC3BB4 #BC833B #3BBC42

split-complementary

#3B74BC #BC423B #B4BC3B

monochromatic

#1E3B5F #2C578D #3B74BC #6594CF #94B4DD

Accessibility & contrast

On white

4.76

#3B74BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#3B74BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B74BC

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B74BC	#FFFFFF	#000000	##FFFFFF
##3B74BC	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5379BF

Deuteranopia (green-blind)

#406DBB

Tritanopia (blue-blind)

#00858F

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3b74bc;
/* rgb */ color: rgb(59, 116, 188);
/* oklch */ color: oklch(55.6% 0.128 255.4);

Tailwind

colors: {
  custom: {
    50: '#7f9bd0',
    500: '#3b74bc',
    950: '#000000',
  },
}

SCSS

$custom: #3b74bc;
$custom-light: #7f9bd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3b74bc",
  "rgb": {
    "r": 59,
    "g": 116,
    "b": 188
  },
  "hsl": {
    "h": 213.488,
    "s": 52.227,
    "l": 48.431
  },
  "oklch": {
    "l": 0.5556,
    "c": 0.1275,
    "h": 255.4
  },
  "luminance": 0.17051
}

Semantic roles & 50–950 ramp

primary

#3B74BC

secondary

#C9AD8A

accent

#9C4CDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3B74BC

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

Preview Lab → · Contrast checker → · Palette generator →