#3998BB#3998BB

#3998BB is a light, moderate cyan. Relative luminance 0.269; OKLCH L 63.9% C 0.102 H 226.3°. Best body text is #000000 at 6.38:1 contrast (WCAG AA passes).

Color values

HEX	#3998BB
RGB	rgb(57, 152, 187)
HSL	hsl(196, 53%, 48%)
HSV	hsv(196, 70%, 73%)
CMYK	cmyk(69.5%, 18.7%, 0%, 26.7%)
CIE-LAB	lab(58.89, -16.37, -26.24)
CIE-LCH	lch(58.89, 30.93, 238.05°)
OKLab	oklab(63.88% -0.0701 -0.0734)
OKLCH	oklch(63.88% 0.102 226.3)
XYZ	xyz(21.8816, 26.9117, 51.0453)
Luminance	0.2691 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3998BB #BB5C39

analogous

#39BB9D #3998BB #3957BB

triadic

#3998BB #BB3998 #98BB39

tetradic

#3998BB #9D39BB #BB5C39 #57BB39

square

#3998BB #9D39BB #BB5C39 #57BB39

split-complementary

#3998BB #BB3957 #BB9D39

monochromatic

#1C4C5D #2B728C #3998BB #62B2CF #91C9DD

Accessibility & contrast

On white

3.29

#3998BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.38

#3998BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3998BB

6.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3998BB	#FFFFFF	#000000	##000000
##3998BB	1.00	3.29	6.38	6.38
#FFFFFF	3.29	1.00	21.00	21.00
#000000	6.38	21.00	1.00	1.00
##000000	6.38	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: #3998bb;
/* rgb */ color: rgb(57, 152, 187);
/* oklch */ color: oklch(63.9% 0.102 226.3);

Tailwind

colors: {
  custom: {
    50: '#7fb6cf',
    500: '#3998bb',
    950: '#000000',
  },
}

SCSS

$custom: #3998bb;
$custom-light: #7fb6cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3998bb",
  "rgb": {
    "r": 57,
    "g": 152,
    "b": 187
  },
  "hsl": {
    "h": 196.154,
    "s": 53.279,
    "l": 47.843
  },
  "oklch": {
    "l": 0.63881,
    "c": 0.10153,
    "h": 226.3
  },
  "luminance": 0.26914
}

Semantic roles & 50–950 ramp

primary

#3998BB

secondary

#C89987

accent

#724BDD

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #3998BB

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

Preview Lab → · Contrast checker → · Palette generator →