#399BBF#399BBF

#399BBF is a light, moderate cyan. Relative luminance 0.281; OKLCH L 64.8% C 0.104 H 226.4°. Best body text is #000000 at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#399BBF
RGB	rgb(57, 155, 191)
HSL	hsl(196, 54%, 49%)
HSV	hsv(196, 70%, 75%)
CMYK	cmyk(70.2%, 18.8%, 0%, 25.1%)
CIE-LAB	lab(59.95, -16.67, -26.86)
CIE-LCH	lch(59.95, 31.62, 238.17°)
OKLab	oklab(64.78% -0.0716 -0.0752)
OKLCH	oklch(64.78% 0.104 226.4)
XYZ	xyz(22.8088, 28.0716, 53.4964)
Luminance	0.2807 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399BBF #BF5D39

analogous

#39BFA0 #399BBF #3958BF

triadic

#399BBF #BF399B #9BBF39

tetradic

#399BBF #A039BF #BF5D39 #58BF39

square

#399BBF #A039BF #BF5D39 #58BF39

split-complementary

#399BBF #BF3958 #BFA039

monochromatic

#1D4E61 #2B7590 #399BBF #64B4D1 #93CBDF

Accessibility & contrast

On white

3.17

#399BBF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.61

#399BBF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399BBF

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399BBF	#FFFFFF	#000000	##000000
##399BBF	1.00	3.17	6.61	6.61
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.61	21.00	1.00	1.00
##000000	6.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8898C1

Deuteranopia (green-blind)

#758BBF

Tritanopia (blue-blind)

#00A6A7

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #399bbf;
/* rgb */ color: rgb(57, 155, 191);
/* oklch */ color: oklch(64.8% 0.104 226.4);

Tailwind

colors: {
  custom: {
    50: '#80b8d2',
    500: '#399bbf',
    950: '#000000',
  },
}

SCSS

$custom: #399bbf;
$custom-light: #80b8d2;
$custom-dark: #000000;

JSON

{
  "hex": "#399bbf",
  "rgb": {
    "r": 57,
    "g": 155,
    "b": 191
  },
  "hsl": {
    "h": 196.119,
    "s": 54.032,
    "l": 48.627
  },
  "oklch": {
    "l": 0.64782,
    "c": 0.10387,
    "h": 226.4
  },
  "luminance": 0.28074
}

Semantic roles & 50–950 ramp

primary

#399BBF

secondary

#CA9B8A

accent

#724ADD

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0B1114

muted

#7C8082

Preview Lab

Preview with #399BBF

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

Preview Lab → · Contrast checker → · Palette generator →