#3391B1#3391B1

#3391B1 is a mid, moderate cyan. Relative luminance 0.241; OKLCH L 61.6% C 0.098 H 224.7°. Best body text is #000000 at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#3391B1
RGB	rgb(51, 145, 177)
HSL	hsl(195, 55%, 45%)
HSV	hsv(195, 71%, 69%)
CMYK	cmyk(71.2%, 18.1%, 0%, 30.6%)
CIE-LAB	lab(56.21, -16.76, -24.71)
CIE-LCH	lch(56.21, 29.86, 235.85°)
OKLab	oklab(61.56% -0.0699 -0.0691)
OKLCH	oklch(61.56% 0.098 224.7)
XYZ	xyz(19.4232, 24.1267, 45.2197)
Luminance	0.2413 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3391B1 #B15333

analogous

#33B192 #3391B1 #3352B1

triadic

#3391B1 #B13391 #91B133

tetradic

#3391B1 #9233B1 #B15333 #52B133

square

#3391B1 #9233B1 #B15333 #52B133

split-complementary

#3391B1 #B13352 #B19233

monochromatic

#184352 #256A81 #3391B1 #54AFCE #83C5DB

Accessibility & contrast

On white

3.60

#3391B1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.83

#3391B1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3391B1

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3391B1	#FFFFFF	#000000	##000000
##3391B1	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)

#7F8EB3

Deuteranopia (green-blind)

#6E81B1

Tritanopia (blue-blind)

#009B9B

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #3391b1;
/* rgb */ color: rgb(51, 145, 177);
/* oklch */ color: oklch(61.6% 0.098 224.7);

Tailwind

colors: {
  custom: {
    50: '#7bb1c8',
    500: '#3391b1',
    950: '#000000',
  },
}

SCSS

$custom: #3391b1;
$custom-light: #7bb1c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3391b1",
  "rgb": {
    "r": 51,
    "g": 145,
    "b": 177
  },
  "hsl": {
    "h": 195.238,
    "s": 55.263,
    "l": 44.706
  },
  "oklch": {
    "l": 0.61561,
    "c": 0.09831,
    "h": 224.7
  },
  "luminance": 0.24129
}

Semantic roles & 50–950 ramp

primary

#3391B1

secondary

#C58E7B

accent

#6F49DF

background

#F8FAFC

surface

#EFF5F8

border

#CACFD1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3391B1

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

Preview Lab → · Contrast checker → · Palette generator →