#399BBD#399BBD

#399BBD is a light, moderate cyan. Relative luminance 0.280; OKLCH L 64.7% C 0.102 H 225.0°. Best body text is #000000 at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#399BBD
RGB	rgb(57, 155, 189)
HSL	hsl(195, 54%, 48%)
HSV	hsv(195, 70%, 74%)
CMYK	cmyk(69.8%, 18%, 0%, 25.9%)
CIE-LAB	lab(59.87, -17.33, -25.86)
CIE-LCH	lch(59.87, 31.13, 236.17°)
OKLab	oklab(64.69% -0.0724 -0.0723)
OKLCH	oklch(64.69% 0.102 225)
XYZ	xyz(22.5903, 27.9841, 52.3452)
Luminance	0.2799 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399BBD #BD5B39

analogous

#39BD9D #399BBD #3959BD

triadic

#399BBD #BD399B #9BBD39

tetradic

#399BBD #9D39BD #BD5B39 #59BD39

square

#399BBD #9D39BD #BD5B39 #59BD39

split-complementary

#399BBD #BD3959 #BD9D39

monochromatic

#1D4E5F #2B748E #399BBD #63B4D0 #92CBDE

Accessibility & contrast

On white

3.18

#399BBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.60

#399BBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399BBD

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399BBD	#FFFFFF	#000000	##000000
##399BBD	1.00	3.18	6.60	6.60
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.60	21.00	1.00	1.00
##000000	6.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8898BF

Deuteranopia (green-blind)

#768ABD

Tritanopia (blue-blind)

#00A5A6

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #399bbd;
/* rgb */ color: rgb(57, 155, 189);
/* oklch */ color: oklch(64.7% 0.102 225.0);

Tailwind

colors: {
  custom: {
    50: '#80b8d1',
    500: '#399bbd',
    950: '#000000',
  },
}

SCSS

$custom: #399bbd;
$custom-light: #80b8d1;
$custom-dark: #000000;

JSON

{
  "hex": "#399bbd",
  "rgb": {
    "r": 57,
    "g": 155,
    "b": 189
  },
  "hsl": {
    "h": 195.455,
    "s": 53.659,
    "l": 48.235
  },
  "oklch": {
    "l": 0.64693,
    "c": 0.10235,
    "h": 225
  },
  "luminance": 0.27987
}

Semantic roles & 50–950 ramp

primary

#399BBD

secondary

#C99989

accent

#704BDD

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0B1114

muted

#7C8082

Preview Lab

Preview with #399BBD

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

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