#3789B9#3789B9

#3789B9 is a mid, moderate cyan. Relative luminance 0.222; OKLCH L 60.1% C 0.107 H 238.1°. Best body text is #000000 at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#3789B9
RGB	rgb(55, 137, 185)
HSL	hsl(202, 54%, 47%)
HSV	hsv(202, 70%, 73%)
CMYK	cmyk(70.3%, 25.9%, 0%, 27.5%)
CIE-LAB	lab(54.24, -9.02, -32.32)
CIE-LCH	lch(54.24, 33.56, 254.42°)
OKLab	oklab(60.13% -0.0567 -0.0911)
OKLCH	oklch(60.13% 0.107 238.1)
XYZ	xyz(19.2748, 22.2042, 49.1595)
Luminance	0.2221 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3789B9 #B96737

analogous

#37B9A8 #3789B9 #3748B9

triadic

#3789B9 #B93789 #89B937

tetradic

#3789B9 #A837B9 #B96737 #48B937

square

#3789B9 #A837B9 #B96737 #48B937

split-complementary

#3789B9 #B93748 #B9A837

monochromatic

#1B435B #29668A #3789B9 #5EA5CF #8DC0DD

Accessibility & contrast

On white

3.86

#3789B9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.44

#3789B9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3789B9

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3789B9	#FFFFFF	#000000	##000000
##3789B9	1.00	3.86	5.44	5.44
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.44	21.00	1.00	1.00
##000000	5.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7289BB

Deuteranopia (green-blind)

#617CB8

Tritanopia (blue-blind)

#009599

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #3789b9;
/* rgb */ color: rgb(55, 137, 185);
/* oklch */ color: oklch(60.1% 0.107 238.1);

Tailwind

colors: {
  custom: {
    50: '#7eabce',
    500: '#3789b9',
    950: '#000000',
  },
}

SCSS

$custom: #3789b9;
$custom-light: #7eabce;
$custom-dark: #000000;

JSON

{
  "hex": "#3789b9",
  "rgb": {
    "r": 55,
    "g": 137,
    "b": 185
  },
  "hsl": {
    "h": 202.154,
    "s": 54.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.60132,
    "c": 0.10725,
    "h": 238.1
  },
  "luminance": 0.22206
}

Semantic roles & 50–950 ramp

primary

#3789B9

secondary

#C89D84

accent

#814ADE

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3789B9

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

Preview Lab → · Contrast checker → · Palette generator →