#3798BB#3798BB

#3798BB is a light, moderate cyan. Relative luminance 0.269; OKLCH L 63.8% C 0.102 H 226.0°. Best body text is #000000 at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#3798BB
RGB	rgb(55, 152, 187)
HSL	hsl(196, 55%, 47%)
HSV	hsv(196, 71%, 73%)
CMYK	cmyk(70.6%, 18.7%, 0%, 26.7%)
CIE-LAB	lab(58.84, -16.66, -26.33)
CIE-LCH	lch(58.84, 31.16, 237.67°)
OKLab	oklab(63.82% -0.0712 -0.0737)
OKLCH	oklch(63.82% 0.102 226)
XYZ	xyz(21.7698, 26.8541, 51.0401)
Luminance	0.2686 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3798BB #BB5A37

analogous

#37BB9C #3798BB #3756BB

triadic

#3798BB #BB3798 #98BB37

tetradic

#3798BB #9C37BB #BB5A37 #56BB37

square

#3798BB #9C37BB #BB5A37 #56BB37

split-complementary

#3798BB #BB3756 #BB9C37

monochromatic

#1B4B5C #29728C #3798BB #5FB2D0 #8EC9DE

Accessibility & contrast

On white

3.30

#3798BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.37

#3798BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3798BB

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3798BB	#FFFFFF	#000000	##000000
##3798BB	1.00	3.30	6.37	6.37
#FFFFFF	3.30	1.00	21.00	21.00
#000000	6.37	21.00	1.00	1.00
##000000	6.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8595BD

Deuteranopia (green-blind)

#7388BB

Tritanopia (blue-blind)

#00A2A3

Achromatopsia (no color)

#8E8E8E

Design tokens & code

CSS

--color: #3798bb;
/* rgb */ color: rgb(55, 152, 187);
/* oklch */ color: oklch(63.8% 0.102 226.0);

Tailwind

colors: {
  custom: {
    50: '#7fb6cf',
    500: '#3798bb',
    950: '#000000',
  },
}

SCSS

$custom: #3798bb;
$custom-light: #7fb6cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3798bb",
  "rgb": {
    "r": 55,
    "g": 152,
    "b": 187
  },
  "hsl": {
    "h": 195.909,
    "s": 54.545,
    "l": 47.451
  },
  "oklch": {
    "l": 0.63823,
    "c": 0.10245,
    "h": 226
  },
  "luminance": 0.26857
}

Semantic roles & 50–950 ramp

primary

#3798BB

secondary

#C99785

accent

#714ADE

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #3798BB

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

Preview Lab → · Contrast checker → · Palette generator →