#3391B2#3391B2

#3391B2 is a mid, moderate cyan. Relative luminance 0.242; OKLCH L 61.6% C 0.099 H 225.4°. Best body text is #000000 at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#3391B2
RGB	rgb(51, 145, 178)
HSL	hsl(196, 55%, 45%)
HSV	hsv(196, 71%, 70%)
CMYK	cmyk(71.3%, 18.5%, 0%, 30.2%)
CIE-LAB	lab(56.25, -16.43, -25.22)
CIE-LCH	lch(56.25, 30.10, 236.92°)
OKLab	oklab(61.61% -0.0695 -0.0706)
OKLCH	oklch(61.61% 0.099 225.4)
XYZ	xyz(19.5232, 24.1667, 45.7466)
Luminance	0.2417 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3391B2 #B25433

analogous

#33B294 #3391B2 #3351B2

triadic

#3391B2 #B23391 #91B233

tetradic

#3391B2 #9433B2 #B25433 #51B233

square

#3391B2 #9433B2 #B25433 #51B233

split-complementary

#3391B2 #B23351 #B29433

monochromatic

#184353 #256A82 #3391B2 #54AECE #84C5DC

Accessibility & contrast

On white

3.60

#3391B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.83

#3391B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3391B2

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3391B2	#FFFFFF	#000000	##000000
##3391B2	1.00	3.60	5.83	5.83
#FFFFFF	3.60	1.00	21.00	21.00
#000000	5.83	21.00	1.00	1.00
##000000	5.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F8EB4

Deuteranopia (green-blind)

#6D81B2

Tritanopia (blue-blind)

#009B9C

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #3391b2;
/* rgb */ color: rgb(51, 145, 178);
/* oklch */ color: oklch(61.6% 0.099 225.4);

Tailwind

colors: {
  custom: {
    50: '#7bb1c9',
    500: '#3391b2',
    950: '#000000',
  },
}

SCSS

$custom: #3391b2;
$custom-light: #7bb1c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3391b2",
  "rgb": {
    "r": 51,
    "g": 145,
    "b": 178
  },
  "hsl": {
    "h": 195.591,
    "s": 55.459,
    "l": 44.902
  },
  "oklch": {
    "l": 0.61607,
    "c": 0.09907,
    "h": 225.4
  },
  "luminance": 0.24169
}

Semantic roles & 50–950 ramp

primary

#3391B2

secondary

#C58F7C

accent

#7049DF

background

#F8FAFC

surface

#EFF5F8

border

#CACFD1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3391B2

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

Preview Lab → · Contrast checker → · Palette generator →