#3490DD#3490DD

#3490DD is a light, vivid cyan. Relative luminance 0.259; OKLCH L 63.6% C 0.144 H 247.9°. Best body text is #000000 at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#3490DD
RGB	rgb(52, 144, 221)
HSL	hsl(207, 71%, 54%)
HSV	hsv(207, 76%, 87%)
CMYK	cmyk(76.5%, 34.8%, 0%, 13.3%)
CIE-LAB	lab(57.94, -0.76, -46.85)
CIE-LCH	lch(57.94, 46.86, 269.07°)
OKLab	oklab(63.59% -0.0541 -0.1333)
OKLCH	oklch(63.59% 0.144 247.9)
XYZ	xyz(24.4356, 25.8941, 72.1028)
Luminance	0.2590 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3490DD #DD8134

analogous

#34DDD5 #3490DD #343BDD

triadic

#3490DD #DD3490 #90DD34

tetradic

#3490DD #D534DD #DD8134 #3BDD34

square

#3490DD #D534DD #DD8134 #3BDD34

split-complementary

#3490DD #DD343B #DDD534

monochromatic

#165081 #1E71B5 #3490DD #68ADE6 #9DC9EF

Accessibility & contrast

On white

3.40

#3490DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.18

#3490DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3490DD

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3490DD	#FFFFFF	#000000	##000000
##3490DD	1.00	3.40	6.18	6.18
#FFFFFF	3.40	1.00	21.00	21.00
#000000	6.18	21.00	1.00	1.00
##000000	6.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C94E0

Deuteranopia (green-blind)

#5484DC

Tritanopia (blue-blind)

#00A2AC

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #3490dd;
/* rgb */ color: rgb(52, 144, 221);
/* oklch */ color: oklch(63.6% 0.144 247.9);

Tailwind

colors: {
  custom: {
    50: '#83b0e8',
    500: '#3490dd',
    950: '#000000',
  },
}

SCSS

$custom: #3490dd;
$custom-light: #83b0e8;
$custom-dark: #000000;

JSON

{
  "hex": "#3490dd",
  "rgb": {
    "r": 52,
    "g": 144,
    "b": 221
  },
  "hsl": {
    "h": 207.337,
    "s": 71.308,
    "l": 53.529
  },
  "oklch": {
    "l": 0.6359,
    "c": 0.14383,
    "h": 247.9
  },
  "luminance": 0.25897
}

Semantic roles & 50–950 ramp

primary

#3490DD

secondary

#DBB392

accent

#8C3AEE

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0C1016

muted

#7D7F84

Preview Lab

Preview with #3490DD

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

Preview Lab → · Contrast checker → · Palette generator →