#399BBC#399BBC

#399BBC is a light, moderate cyan. Relative luminance 0.279; OKLCH L 64.6% C 0.102 H 224.2°. Best body text is #000000 at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#399BBC
RGB	rgb(57, 155, 188)
HSL	hsl(195, 53%, 48%)
HSV	hsv(195, 70%, 74%)
CMYK	cmyk(69.7%, 17.6%, 0%, 26.3%)
CIE-LAB	lab(59.84, -17.66, -25.35)
CIE-LCH	lch(59.84, 30.90, 235.15°)
OKLab	oklab(64.65% -0.0728 -0.0709)
OKLCH	oklch(64.65% 0.102 224.2)
XYZ	xyz(22.4821, 27.9409, 51.7755)
Luminance	0.2794 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399BBC #BC5A39

analogous

#39BC9C #399BBC #3959BC

triadic

#399BBC #BC399B #9BBC39

tetradic

#399BBC #9C39BC #BC5A39 #59BC39

square

#399BBC #9C39BC #BC5A39 #59BC39

split-complementary

#399BBC #BC3959 #BC9C39

monochromatic

#1D4E5E #2B748D #399BBC #63B4D0 #92CBDE

Accessibility & contrast

On white

3.19

#399BBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.59

#399BBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399BBC

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399BBC	#FFFFFF	#000000	##000000
##399BBC	1.00	3.19	6.59	6.59
#FFFFFF	3.19	1.00	21.00	21.00
#000000	6.59	21.00	1.00	1.00
##000000	6.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8998BE

Deuteranopia (green-blind)

#768ABC

Tritanopia (blue-blind)

#00A5A6

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #399bbc;
/* rgb */ color: rgb(57, 155, 188);
/* oklch */ color: oklch(64.6% 0.102 224.2);

Tailwind

colors: {
  custom: {
    50: '#80b8d0',
    500: '#399bbc',
    950: '#000000',
  },
}

SCSS

$custom: #399bbc;
$custom-light: #80b8d0;
$custom-dark: #000000;

JSON

{
  "hex": "#399bbc",
  "rgb": {
    "r": 57,
    "g": 155,
    "b": 188
  },
  "hsl": {
    "h": 195.115,
    "s": 53.469,
    "l": 48.039
  },
  "oklch": {
    "l": 0.64649,
    "c": 0.10161,
    "h": 224.2
  },
  "luminance": 0.27943
}

Semantic roles & 50–950 ramp

primary

#399BBC

secondary

#C99888

accent

#704BDD

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0B1114

muted

#7C8082

Preview Lab

Preview with #399BBC

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

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