#3789B3#3789B3

#3789B3 is a mid, moderate cyan. Relative luminance 0.220; OKLCH L 59.8% C 0.101 H 234.5°. Best body text is #000000 at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#3789B3
RGB	rgb(55, 137, 179)
HSL	hsl(200, 53%, 46%)
HSV	hsv(200, 69%, 70%)
CMYK	cmyk(69.3%, 23.5%, 0%, 29.8%)
CIE-LAB	lab(53.98, -11.07, -29.30)
CIE-LCH	lch(53.98, 31.32, 249.30°)
OKLab	oklab(59.84% -0.0587 -0.0823)
OKLCH	oklch(59.84% 0.101 234.5)
XYZ	xyz(18.6547, 21.9562, 45.8939)
Luminance	0.2196 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3789B3 #B36137

analogous

#37B39F #3789B3 #374BB3

triadic

#3789B3 #B33789 #89B337

tetradic

#3789B3 #9F37B3 #B36137 #4BB337

square

#3789B3 #9F37B3 #B36137 #4BB337

split-complementary

#3789B3 #B3374B #B39F37

monochromatic

#1A4155 #296584 #3789B3 #5BA6CD #8ABFDB

Accessibility & contrast

On white

3.89

#3789B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.39

#3789B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3789B3

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3789B3	#FFFFFF	#000000	##000000
##3789B3	1.00	3.89	5.39	5.39
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.39	21.00	1.00	1.00
##000000	5.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7588B5

Deuteranopia (green-blind)

#647CB2

Tritanopia (blue-blind)

#009497

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3789b3;
/* rgb */ color: rgb(55, 137, 179);
/* oklch */ color: oklch(59.8% 0.101 234.5);

Tailwind

colors: {
  custom: {
    50: '#7dabca',
    500: '#3789b3',
    950: '#000000',
  },
}

SCSS

$custom: #3789b3;
$custom-light: #7dabca;
$custom-dark: #000000;

JSON

{
  "hex": "#3789b3",
  "rgb": {
    "r": 55,
    "g": 137,
    "b": 179
  },
  "hsl": {
    "h": 200.323,
    "s": 52.991,
    "l": 45.882
  },
  "oklch": {
    "l": 0.59837,
    "c": 0.10113,
    "h": 234.5
  },
  "luminance": 0.21958
}

Semantic roles & 50–950 ramp

primary

#3789B3

secondary

#C59881

accent

#7D4BDC

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3789B3

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

Preview Lab → · Contrast checker → · Palette generator →