#3789B7#3789B7

#3789B7 is a mid, moderate cyan. Relative luminance 0.221; OKLCH L 60.0% C 0.105 H 236.9°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#3789B7
RGB	rgb(55, 137, 183)
HSL	hsl(202, 54%, 47%)
HSV	hsv(202, 70%, 72%)
CMYK	cmyk(69.9%, 25.1%, 0%, 28.2%)
CIE-LAB	lab(54.15, -9.70, -31.32)
CIE-LCH	lch(54.15, 32.79, 252.79°)
OKLab	oklab(60.03% -0.0574 -0.0882)
OKLCH	oklch(60.03% 0.105 236.9)
XYZ	xyz(19.0651, 22.1203, 48.0554)
Luminance	0.2212 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3789B7 #B76537

analogous

#37B7A5 #3789B7 #3749B7

triadic

#3789B7 #B73789 #89B737

tetradic

#3789B7 #A537B7 #B76537 #49B737

square

#3789B7 #A537B7 #B76537 #49B737

split-complementary

#3789B7 #B73749 #B7A537

monochromatic

#1B4359 #296688 #3789B7 #5DA6CE #8CC0DC

Accessibility & contrast

On white

3.87

#3789B7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#3789B7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3789B7

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3789B7	#FFFFFF	#000000	##000000
##3789B7	1.00	3.87	5.42	5.42
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7388B9

Deuteranopia (green-blind)

#627CB6

Tritanopia (blue-blind)

#009599

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3789b7;
/* rgb */ color: rgb(55, 137, 183);
/* oklch */ color: oklch(60.0% 0.105 236.9);

Tailwind

colors: {
  custom: {
    50: '#7dabcc',
    500: '#3789b7',
    950: '#000000',
  },
}

SCSS

$custom: #3789b7;
$custom-light: #7dabcc;
$custom-dark: #000000;

JSON

{
  "hex": "#3789b7",
  "rgb": {
    "r": 55,
    "g": 137,
    "b": 183
  },
  "hsl": {
    "h": 201.563,
    "s": 53.782,
    "l": 46.667
  },
  "oklch": {
    "l": 0.60033,
    "c": 0.10517,
    "h": 236.9
  },
  "luminance": 0.22122
}

Semantic roles & 50–950 ramp

primary

#3789B7

secondary

#C79B83

accent

#7F4BDD

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3789B7

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

Preview Lab → · Contrast checker → · Palette generator →