#3390B3#3390B3

#3390B3 is a mid, moderate cyan. Relative luminance 0.239; OKLCH L 61.4% C 0.100 H 227.1°. Best body text is #000000 at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#3390B3
RGB	rgb(51, 144, 179)
HSL	hsl(196, 56%, 45%)
HSV	hsv(196, 72%, 70%)
CMYK	cmyk(71.5%, 19.6%, 0%, 29.8%)
CIE-LAB	lab(55.99, -15.55, -26.20)
CIE-LCH	lch(55.99, 30.46, 239.31°)
OKLab	oklab(61.41% -0.0681 -0.0734)
OKLCH	oklch(61.41% 0.1 227.1)
XYZ	xyz(19.4719, 23.9028, 46.2266)
Luminance	0.2391 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3390B3 #B35633

analogous

#33B396 #3390B3 #3350B3

triadic

#3390B3 #B33390 #90B333

tetradic

#3390B3 #9633B3 #B35633 #50B333

square

#3390B3 #9633B3 #B35633 #50B333

split-complementary

#3390B3 #B33350 #B39633

monochromatic

#184354 #256A83 #3390B3 #55ADCE #84C4DC

Accessibility & contrast

On white

3.63

#3390B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.78

#3390B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3390B3

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3390B3	#FFFFFF	#000000	##000000
##3390B3	1.00	3.63	5.78	5.78
#FFFFFF	3.63	1.00	21.00	21.00
#000000	5.78	21.00	1.00	1.00
##000000	5.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D8DB5

Deuteranopia (green-blind)

#6C81B3

Tritanopia (blue-blind)

#009A9B

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #3390b3;
/* rgb */ color: rgb(51, 144, 179);
/* oklch */ color: oklch(61.4% 0.100 227.1);

Tailwind

colors: {
  custom: {
    50: '#7cb0c9',
    500: '#3390b3',
    950: '#000000',
  },
}

SCSS

$custom: #3390b3;
$custom-light: #7cb0c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3390b3",
  "rgb": {
    "r": 51,
    "g": 144,
    "b": 179
  },
  "hsl": {
    "h": 196.406,
    "s": 55.652,
    "l": 45.098
  },
  "oklch": {
    "l": 0.61409,
    "c": 0.10013,
    "h": 227.1
  },
  "luminance": 0.23905
}

Semantic roles & 50–950 ramp

primary

#3390B3

secondary

#C6907C

accent

#7249DF

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3390B3

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

Preview Lab → · Contrast checker → · Palette generator →