#3383BB#3383BB

#3383BB is a mid, moderate cyan. Relative luminance 0.205; OKLCH L 58.7% C 0.115 H 243.0°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#3383BB
RGB	rgb(51, 131, 187)
HSL	hsl(205, 57%, 47%)
HSV	hsv(205, 73%, 73%)
CMYK	cmyk(72.7%, 29.9%, 0%, 26.7%)
CIE-LAB	lab(52.42, -5.43, -36.32)
CIE-LCH	lch(52.42, 36.73, 261.49°)
OKLab	oklab(58.69% -0.0524 -0.1028)
OKLCH	oklch(58.69% 0.115 243)
XYZ	xyz(18.4477, 20.5222, 49.9930)
Luminance	0.2052 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3383BB #BB6B33

analogous

#33BBAF #3383BB #333FBB

triadic

#3383BB #BB3383 #83BB33

tetradic

#3383BB #AF33BB #BB6B33 #3FBB33

square

#3383BB #AF33BB #BB6B33 #3FBB33

split-complementary

#3383BB #BB333F #BBAF33

monochromatic

#19405B #26618B #3383BB #59A0D2 #89BCDF

Accessibility & contrast

On white

4.11

#3383BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#3383BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3383BB

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3383BB	#FFFFFF	#000000	##000000
##3383BB	1.00	4.11	5.10	5.10
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6984BD

Deuteranopia (green-blind)

#5777BA

Tritanopia (blue-blind)

#009197

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3383bb;
/* rgb */ color: rgb(51, 131, 187);
/* oklch */ color: oklch(58.7% 0.115 243.0);

Tailwind

colors: {
  custom: {
    50: '#7ca6cf',
    500: '#3383bb',
    950: '#000000',
  },
}

SCSS

$custom: #3383bb;
$custom-light: #7ca6cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3383bb",
  "rgb": {
    "r": 51,
    "g": 131,
    "b": 187
  },
  "hsl": {
    "h": 204.706,
    "s": 57.143,
    "l": 46.667
  },
  "oklch": {
    "l": 0.58687,
    "c": 0.11533,
    "h": 243
  },
  "luminance": 0.20524
}

Semantic roles & 50–950 ramp

primary

#3383BB

secondary

#C99F81

accent

#8647E0

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3383BB

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

Preview Lab → · Contrast checker → · Palette generator →