#3391BC#3391BC

#3391BC is a light, moderate cyan. Relative luminance 0.246; OKLCH L 62.1% C 0.108 H 232.3°. Best body text is #000000 at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#3391BC
RGB	rgb(51, 145, 188)
HSL	hsl(199, 57%, 47%)
HSV	hsv(199, 73%, 74%)
CMYK	cmyk(72.9%, 22.9%, 0%, 26.3%)
CIE-LAB	lab(56.67, -13.05, -30.27)
CIE-LCH	lch(56.67, 32.96, 246.67°)
OKLab	oklab(62.07% -0.0658 -0.0851)
OKLCH	oklch(62.07% 0.108 232.3)
XYZ	xyz(20.5641, 24.5831, 51.2284)
Luminance	0.2459 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3391BC #BC5E33

analogous

#33BCA3 #3391BC #334DBC

triadic

#3391BC #BC3391 #91BC33

tetradic

#3391BC #A333BC #BC5E33 #4DBC33

square

#3391BC #A333BC #BC5E33 #4DBC33

split-complementary

#3391BC #BC334D #BCA333

monochromatic

#19475C #266C8C #3391BC #5AACD2 #8AC5DF

Accessibility & contrast

On white

3.55

#3391BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.92

#3391BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3391BC

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3391BC	#FFFFFF	#000000	##000000
##3391BC	1.00	3.55	5.92	5.92
#FFFFFF	3.55	1.00	21.00	21.00
#000000	5.92	21.00	1.00	1.00
##000000	5.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8FBE

Deuteranopia (green-blind)

#6982BB

Tritanopia (blue-blind)

#009D9F

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3391bc;
/* rgb */ color: rgb(51, 145, 188);
/* oklch */ color: oklch(62.1% 0.108 232.3);

Tailwind

colors: {
  custom: {
    50: '#7db1d0',
    500: '#3391bc',
    950: '#000000',
  },
}

SCSS

$custom: #3391bc;
$custom-light: #7db1d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3391bc",
  "rgb": {
    "r": 51,
    "g": 145,
    "b": 188
  },
  "hsl": {
    "h": 198.832,
    "s": 57.322,
    "l": 46.863
  },
  "oklch": {
    "l": 0.62072,
    "c": 0.10757,
    "h": 232.3
  },
  "luminance": 0.24585
}

Semantic roles & 50–950 ramp

primary

#3391BC

secondary

#C99881

accent

#7747E1

background

#F8FAFC

surface

#EFF5F9

border

#CACFD2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3391BC

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

Preview Lab → · Contrast checker → · Palette generator →