#3390B5#3390B5

#3390B5 is a mid, moderate cyan. Relative luminance 0.240; OKLCH L 61.5% C 0.102 H 228.6°. Best body text is #000000 at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#3390B5
RGB	rgb(51, 144, 181)
HSL	hsl(197, 56%, 45%)
HSV	hsv(197, 72%, 71%)
CMYK	cmyk(71.8%, 20.4%, 0%, 29%)
CIE-LAB	lab(56.07, -14.88, -27.21)
CIE-LCH	lch(56.07, 31.01, 241.33°)
OKLab	oklab(61.5% -0.0674 -0.0763)
OKLCH	oklch(61.5% 0.102 228.6)
XYZ	xyz(19.6756, 23.9843, 47.2996)
Luminance	0.2399 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3390B5 #B55833

analogous

#33B599 #3390B5 #334FB5

triadic

#3390B5 #B53390 #90B533

tetradic

#3390B5 #9933B5 #B55833 #4FB533

square

#3390B5 #9933B5 #B55833 #4FB533

split-complementary

#3390B5 #B5334F #B59933

monochromatic

#184456 #266A85 #3390B5 #56ADCF #86C4DD

Accessibility & contrast

On white

3.62

#3390B5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.80

#3390B5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3390B5

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3390B5	#FFFFFF	#000000	##000000
##3390B5	1.00	3.62	5.80	5.80
#FFFFFF	3.62	1.00	21.00	21.00
#000000	5.80	21.00	1.00	1.00
##000000	5.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D8EB7

Deuteranopia (green-blind)

#6B81B5

Tritanopia (blue-blind)

#009A9C

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #3390b5;
/* rgb */ color: rgb(51, 144, 181);
/* oklch */ color: oklch(61.5% 0.102 228.6);

Tailwind

colors: {
  custom: {
    50: '#7cb0cb',
    500: '#3390b5',
    950: '#000000',
  },
}

SCSS

$custom: #3390b5;
$custom-light: #7cb0cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3390b5",
  "rgb": {
    "r": 51,
    "g": 144,
    "b": 181
  },
  "hsl": {
    "h": 197.077,
    "s": 56.034,
    "l": 45.49
  },
  "oklch": {
    "l": 0.61501,
    "c": 0.10178,
    "h": 228.6
  },
  "luminance": 0.23987
}

Semantic roles & 50–950 ramp

primary

#3390B5

secondary

#C6927D

accent

#7348DF

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3390B5

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

Preview Lab → · Contrast checker → · Palette generator →