#3789B5#3789B5

#3789B5 is a mid, moderate cyan. Relative luminance 0.220; OKLCH L 59.9% C 0.103 H 235.7°. Best body text is #000000 at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#3789B5
RGB	rgb(55, 137, 181)
HSL	hsl(201, 53%, 46%)
HSV	hsv(201, 70%, 71%)
CMYK	cmyk(69.6%, 24.3%, 0%, 29%)
CIE-LAB	lab(54.07, -10.39, -30.31)
CIE-LCH	lch(54.07, 32.04, 251.08°)
OKLab	oklab(59.93% -0.058 -0.0852)
OKLCH	oklch(59.93% 0.103 235.7)
XYZ	xyz(18.8584, 22.0377, 46.9669)
Luminance	0.2204 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3789B5 #B56337

analogous

#37B5A2 #3789B5 #374AB5

triadic

#3789B5 #B53789 #89B537

tetradic

#3789B5 #A237B5 #B56337 #4AB537

square

#3789B5 #A237B5 #B56337 #4AB537

split-complementary

#3789B5 #B5374A #B5A237

monochromatic

#1A4257 #296586 #3789B5 #5CA6CD #8BBFDC

Accessibility & contrast

On white

3.88

#3789B5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.41

#3789B5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3789B5

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3789B5	#FFFFFF	#000000	##000000
##3789B5	1.00	3.88	5.41	5.41
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.41	21.00	1.00	1.00
##000000	5.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7488B7

Deuteranopia (green-blind)

#637CB4

Tritanopia (blue-blind)

#009498

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3789b5;
/* rgb */ color: rgb(55, 137, 181);
/* oklch */ color: oklch(59.9% 0.103 235.7);

Tailwind

colors: {
  custom: {
    50: '#7dabcb',
    500: '#3789b5',
    950: '#000000',
  },
}

SCSS

$custom: #3789b5;
$custom-light: #7dabcb;
$custom-dark: #000000;

JSON

{
  "hex": "#3789b5",
  "rgb": {
    "r": 55,
    "g": 137,
    "b": 181
  },
  "hsl": {
    "h": 200.952,
    "s": 53.39,
    "l": 46.275
  },
  "oklch": {
    "l": 0.59934,
    "c": 0.10313,
    "h": 235.7
  },
  "luminance": 0.2204
}

Semantic roles & 50–950 ramp

primary

#3789B5

secondary

#C69A82

accent

#7E4BDD

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3789B5

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

Preview Lab → · Contrast checker → · Palette generator →