#3388B3#3388B3

#3388B3 is a mid, moderate cyan. Relative luminance 0.216; OKLCH L 59.5% C 0.103 H 234.5°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#3388B3
RGB	rgb(51, 136, 179)
HSL	hsl(200, 56%, 45%)
HSV	hsv(200, 72%, 70%)
CMYK	cmyk(71.5%, 24%, 0%, 29.8%)
CIE-LAB	lab(53.56, -11.10, -29.96)
CIE-LCH	lch(53.56, 31.95, 249.66°)
OKLab	oklab(59.47% -0.06 -0.0843)
OKLCH	oklch(59.47% 0.103 234.5)
XYZ	xyz(18.3029, 21.5647, 45.8369)
Luminance	0.2157 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3388B3 #B35E33

analogous

#33B39E #3388B3 #3348B3

triadic

#3388B3 #B33388 #88B333

tetradic

#3388B3 #9E33B3 #B35E33 #48B333

square

#3388B3 #9E33B3 #B35E33 #48B333

split-complementary

#3388B3 #B33348 #B39E33

monochromatic

#184054 #256483 #3388B3 #55A6CE #84BFDC

Accessibility & contrast

On white

3.95

#3388B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#3388B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3388B3

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3388B3	#FFFFFF	#000000	##000000
##3388B3	1.00	3.95	5.31	5.31
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7387B5

Deuteranopia (green-blind)

#627AB2

Tritanopia (blue-blind)

#009397

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3388b3;
/* rgb */ color: rgb(51, 136, 179);
/* oklch */ color: oklch(59.5% 0.103 234.5);

Tailwind

colors: {
  custom: {
    50: '#7baaca',
    500: '#3388b3',
    950: '#000000',
  },
}

SCSS

$custom: #3388b3;
$custom-light: #7baaca;
$custom-dark: #000000;

JSON

{
  "hex": "#3388b3",
  "rgb": {
    "r": 51,
    "g": 136,
    "b": 179
  },
  "hsl": {
    "h": 200.156,
    "s": 55.652,
    "l": 45.098
  },
  "oklch": {
    "l": 0.59471,
    "c": 0.10345,
    "h": 234.5
  },
  "luminance": 0.21567
}

Semantic roles & 50–950 ramp

primary

#3388B3

secondary

#C6957C

accent

#7B49DF

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3388B3

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

Preview Lab → · Contrast checker → · Palette generator →