#399CB8#399CB8

#399CB8 is a light, moderate cyan. Relative luminance 0.281; OKLCH L 64.7% C 0.099 H 220.3°. Best body text is #000000 at 6.62:1 contrast (WCAG AA passes).

Color values

HEX	#399CB8
RGB	rgb(57, 156, 184)
HSL	hsl(193, 53%, 47%)
HSV	hsv(193, 69%, 72%)
CMYK	cmyk(69%, 15.2%, 0%, 27.8%)
CIE-LAB	lab(59.98, -19.48, -22.87)
CIE-LCH	lch(59.98, 30.05, 229.58°)
OKLab	oklab(64.72% -0.0754 -0.0638)
OKLCH	oklch(64.72% 0.099 220.3)
XYZ	xyz(22.2240, 28.1050, 49.5917)
Luminance	0.2811 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399CB8 #B85539

analogous

#39B894 #399CB8 #395DB8

triadic

#399CB8 #B8399C #9CB839

tetradic

#399CB8 #9439B8 #B85539 #5DB839

square

#399CB8 #9439B8 #B85539 #5DB839

split-complementary

#399CB8 #B8395D #B89439

monochromatic

#1C4D5B #2B7489 #399CB8 #60B6CE #8FCBDC

Accessibility & contrast

On white

3.17

#399CB8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.62

#399CB8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399CB8

6.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399CB8	#FFFFFF	#000000	##000000
##399CB8	1.00	3.17	6.62	6.62
#FFFFFF	3.17	1.00	21.00	21.00
#000000	6.62	21.00	1.00	1.00
##000000	6.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B98BA

Deuteranopia (green-blind)

#798BB8

Tritanopia (blue-blind)

#00A5A5

Achromatopsia (no color)

#919191

Design tokens & code

CSS

--color: #399cb8;
/* rgb */ color: rgb(57, 156, 184);
/* oklch */ color: oklch(64.7% 0.099 220.3);

Tailwind

colors: {
  custom: {
    50: '#7fb9cd',
    500: '#399cb8',
    950: '#000000',
  },
}

SCSS

$custom: #399cb8;
$custom-light: #7fb9cd;
$custom-dark: #000000;

JSON

{
  "hex": "#399cb8",
  "rgb": {
    "r": 57,
    "g": 156,
    "b": 184
  },
  "hsl": {
    "h": 193.228,
    "s": 52.697,
    "l": 47.255
  },
  "oklch": {
    "l": 0.64717,
    "c": 0.09875,
    "h": 220.3
  },
  "luminance": 0.28107
}

Semantic roles & 50–950 ramp

primary

#399CB8

secondary

#C79486

accent

#6C4CDC

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #399CB8

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

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