#3391B8#3391B8

#3391B8 is a mid, moderate cyan. Relative luminance 0.244; OKLCH L 61.9% C 0.104 H 229.7°. Best body text is #000000 at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#3391B8
RGB	rgb(51, 145, 184)
HSL	hsl(198, 57%, 46%)
HSV	hsv(198, 72%, 72%)
CMYK	cmyk(72.3%, 21.2%, 0%, 27.8%)
CIE-LAB	lab(56.50, -14.41, -28.25)
CIE-LCH	lch(56.50, 31.72, 242.97°)
OKLab	oklab(61.88% -0.0673 -0.0793)
OKLCH	oklch(61.88% 0.104 229.7)
XYZ	xyz(20.1389, 24.4130, 48.9889)
Luminance	0.2442 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3391B8 #B85A33

analogous

#33B89C #3391B8 #334EB8

triadic

#3391B8 #B83391 #91B833

tetradic

#3391B8 #9C33B8 #B85A33 #4EB833

square

#3391B8 #9C33B8 #B85A33 #4EB833

split-complementary

#3391B8 #B8334E #B89C33

monochromatic

#184558 #266B88 #3391B8 #58ADD1 #88C5DE

Accessibility & contrast

On white

3.57

#3391B8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.88

#3391B8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3391B8

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3391B8	#FFFFFF	#000000	##000000
##3391B8	1.00	3.57	5.88	5.88
#FFFFFF	3.57	1.00	21.00	21.00
#000000	5.88	21.00	1.00	1.00
##000000	5.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D8FBA

Deuteranopia (green-blind)

#6B82B7

Tritanopia (blue-blind)

#009C9E

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #3391b8;
/* rgb */ color: rgb(51, 145, 184);
/* oklch */ color: oklch(61.9% 0.104 229.7);

Tailwind

colors: {
  custom: {
    50: '#7cb1cd',
    500: '#3391b8',
    950: '#000000',
  },
}

SCSS

$custom: #3391b8;
$custom-light: #7cb1cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3391b8",
  "rgb": {
    "r": 51,
    "g": 145,
    "b": 184
  },
  "hsl": {
    "h": 197.594,
    "s": 56.596,
    "l": 46.078
  },
  "oklch": {
    "l": 0.61883,
    "c": 0.10398,
    "h": 229.7
  },
  "luminance": 0.24415
}

Semantic roles & 50–950 ramp

primary

#3391B8

secondary

#C8947F

accent

#7448E0

background

#F8FAFC

surface

#EFF5F9

border

#CACFD2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3391B8

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

Preview Lab → · Contrast checker → · Palette generator →