#3390BB#3390BB

#3390BB is a mid, moderate cyan. Relative luminance 0.242; OKLCH L 61.8% C 0.107 H 232.5°. Best body text is #000000 at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#3390BB
RGB	rgb(51, 144, 187)
HSL	hsl(199, 57%, 47%)
HSV	hsv(199, 73%, 73%)
CMYK	cmyk(72.7%, 23%, 0%, 26.7%)
CIE-LAB	lab(56.32, -12.84, -30.23)
CIE-LCH	lch(56.32, 32.85, 246.99°)
OKLab	oklab(61.78% -0.0652 -0.085)
OKLCH	oklch(61.78% 0.107 232.5)
XYZ	xyz(20.3046, 24.2358, 50.6119)
Luminance	0.2424 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3390BB #BB5E33

analogous

#33BBA2 #3390BB #334CBB

triadic

#3390BB #BB3390 #90BB33

tetradic

#3390BB #A233BB #BB5E33 #4CBB33

square

#3390BB #A233BB #BB5E33 #4CBB33

split-complementary

#3390BB #BB334C #BBA233

monochromatic

#19465B #266B8B #3390BB #59ACD2 #89C4DF

Accessibility & contrast

On white

3.59

#3390BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.85

#3390BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3390BB

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3390BB	#FFFFFF	#000000	##000000
##3390BB	1.00	3.59	5.85	5.85
#FFFFFF	3.59	1.00	21.00	21.00
#000000	5.85	21.00	1.00	1.00
##000000	5.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8EBD

Deuteranopia (green-blind)

#6881BA

Tritanopia (blue-blind)

#009C9E

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #3390bb;
/* rgb */ color: rgb(51, 144, 187);
/* oklch */ color: oklch(61.8% 0.107 232.5);

Tailwind

colors: {
  custom: {
    50: '#7db0cf',
    500: '#3390bb',
    950: '#000000',
  },
}

SCSS

$custom: #3390bb;
$custom-light: #7db0cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3390bb",
  "rgb": {
    "r": 51,
    "g": 144,
    "b": 187
  },
  "hsl": {
    "h": 198.971,
    "s": 57.143,
    "l": 46.667
  },
  "oklch": {
    "l": 0.61784,
    "c": 0.10711,
    "h": 232.5
  },
  "luminance": 0.24238
}

Semantic roles & 50–950 ramp

primary

#3390BB

secondary

#C99881

accent

#7847E0

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3390BB

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

Preview Lab → · Contrast checker → · Palette generator →