#3789BD#3789BD

#3789BD is a mid, moderate cyan. Relative luminance 0.224; OKLCH L 60.3% C 0.112 H 240.2°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#3789BD
RGB	rgb(55, 137, 189)
HSL	hsl(203, 55%, 48%)
HSV	hsv(203, 71%, 74%)
CMYK	cmyk(70.9%, 27.5%, 0%, 25.9%)
CIE-LAB	lab(54.42, -7.63, -34.32)
CIE-LCH	lch(54.42, 35.16, 257.46°)
OKLab	oklab(60.34% -0.0553 -0.0968)
OKLCH	oklch(60.34% 0.112 240.2)
XYZ	xyz(19.7030, 22.3755, 51.4148)
Luminance	0.2238 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3789BD #BD6B37

analogous

#37BDAE #3789BD #3746BD

triadic

#3789BD #BD3789 #89BD37

tetradic

#3789BD #AE37BD #BD6B37 #46BD37

square

#3789BD #AE37BD #BD6B37 #46BD37

split-complementary

#3789BD #BD3746 #BDAE37

monochromatic

#1B445E #29678E #3789BD #60A5D1 #90C0DF

Accessibility & contrast

On white

3.84

#3789BD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.48

#3789BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3789BD

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3789BD	#FFFFFF	#000000	##000000
##3789BD	1.00	3.84	5.48	5.48
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.48	21.00	1.00	1.00
##000000	5.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7189BF

Deuteranopia (green-blind)

#5F7CBC

Tritanopia (blue-blind)

#00969B

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #3789bd;
/* rgb */ color: rgb(55, 137, 189);
/* oklch */ color: oklch(60.3% 0.112 240.2);

Tailwind

colors: {
  custom: {
    50: '#7eabd1',
    500: '#3789bd',
    950: '#000000',
  },
}

SCSS

$custom: #3789bd;
$custom-light: #7eabd1;
$custom-dark: #000000;

JSON

{
  "hex": "#3789bd",
  "rgb": {
    "r": 55,
    "g": 137,
    "b": 189
  },
  "hsl": {
    "h": 203.284,
    "s": 54.918,
    "l": 47.843
  },
  "oklch": {
    "l": 0.60335,
    "c": 0.11154,
    "h": 240.2
  },
  "luminance": 0.22378
}

Semantic roles & 50–950 ramp

primary

#3789BD

secondary

#C9A086

accent

#834ADE

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3789BD

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

Preview Lab → · Contrast checker → · Palette generator →