#3391B7#3391B7

#3391B7 is a mid, moderate cyan. Relative luminance 0.244; OKLCH L 61.8% C 0.103 H 229.0°. Best body text is #000000 at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#3391B7
RGB	rgb(51, 145, 183)
HSL	hsl(197, 56%, 46%)
HSV	hsv(197, 72%, 72%)
CMYK	cmyk(72.1%, 20.8%, 0%, 28.2%)
CIE-LAB	lab(56.46, -14.75, -27.75)
CIE-LCH	lch(56.46, 31.43, 242.01°)
OKLab	oklab(61.84% -0.0676 -0.0778)
OKLCH	oklch(61.84% 0.103 229)
XYZ	xyz(20.0344, 24.3712, 48.4388)
Luminance	0.2437 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3391B7 #B75933

analogous

#33B79B #3391B7 #334FB7

triadic

#3391B7 #B73391 #91B733

tetradic

#3391B7 #9B33B7 #B75933 #4FB733

square

#3391B7 #9B33B7 #B75933 #4FB733

split-complementary

#3391B7 #B7334F #B79B33

monochromatic

#184557 #266B87 #3391B7 #57ADD0 #87C5DE

Accessibility & contrast

On white

3.57

#3391B7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.87

#3391B7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3391B7

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3391B7	#FFFFFF	#000000	##000000
##3391B7	1.00	3.57	5.87	5.87
#FFFFFF	3.57	1.00	21.00	21.00
#000000	5.87	21.00	1.00	1.00
##000000	5.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D8FB9

Deuteranopia (green-blind)

#6B82B6

Tritanopia (blue-blind)

#009C9E

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #3391b7;
/* rgb */ color: rgb(51, 145, 183);
/* oklch */ color: oklch(61.8% 0.103 229.0);

Tailwind

colors: {
  custom: {
    50: '#7cb1cc',
    500: '#3391b7',
    950: '#000000',
  },
}

SCSS

$custom: #3391b7;
$custom-light: #7cb1cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3391b7",
  "rgb": {
    "r": 51,
    "g": 145,
    "b": 183
  },
  "hsl": {
    "h": 197.273,
    "s": 56.41,
    "l": 45.882
  },
  "oklch": {
    "l": 0.61836,
    "c": 0.10312,
    "h": 229
  },
  "luminance": 0.24374
}

Semantic roles & 50–950 ramp

primary

#3391B7

secondary

#C7937F

accent

#7448E0

background

#F8FAFC

surface

#EFF5F9

border

#CACFD2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3391B7

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

Preview Lab → · Contrast checker → · Palette generator →