#399BB8#399BB8

#399BB8 is a light, moderate cyan. Relative luminance 0.278; OKLCH L 64.5% C 0.099 H 221.2°. Best body text is #000000 at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#399BB8
RGB	rgb(57, 155, 184)
HSL	hsl(194, 53%, 47%)
HSV	hsv(194, 69%, 72%)
CMYK	cmyk(69%, 15.8%, 0%, 27.8%)
CIE-LAB	lab(59.68, -18.95, -23.34)
CIE-LCH	lch(59.68, 30.06, 230.92°)
OKLab	oklab(64.47% -0.0743 -0.0651)
OKLCH	oklch(64.47% 0.099 221.2)
XYZ	xyz(22.0569, 27.7708, 49.5360)
Luminance	0.2777 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399BB8 #B85639

analogous

#39B896 #399BB8 #395BB8

triadic

#399BB8 #B8399B #9BB839

tetradic

#399BB8 #9639B8 #B85639 #5BB839

square

#399BB8 #9639B8 #B85639 #5BB839

split-complementary

#399BB8 #B8395B #B89639

monochromatic

#1C4C5B #2B7489 #399BB8 #60B5CE #8FCBDC

Accessibility & contrast

On white

3.20

#399BB8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.55

#399BB8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399BB8

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399BB8	#FFFFFF	#000000	##000000
##399BB8	1.00	3.20	6.55	6.55
#FFFFFF	3.20	1.00	21.00	21.00
#000000	6.55	21.00	1.00	1.00
##000000	6.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8A97BA

Deuteranopia (green-blind)

#788AB8

Tritanopia (blue-blind)

#00A4A4

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #399bb8;
/* rgb */ color: rgb(57, 155, 184);
/* oklch */ color: oklch(64.5% 0.099 221.2);

Tailwind

colors: {
  custom: {
    50: '#7fb8cd',
    500: '#399bb8',
    950: '#000000',
  },
}

SCSS

$custom: #399bb8;
$custom-light: #7fb8cd;
$custom-dark: #000000;

JSON

{
  "hex": "#399bb8",
  "rgb": {
    "r": 57,
    "g": 155,
    "b": 184
  },
  "hsl": {
    "h": 193.701,
    "s": 52.697,
    "l": 47.255
  },
  "oklch": {
    "l": 0.64474,
    "c": 0.09883,
    "h": 221.2
  },
  "luminance": 0.27773
}

Semantic roles & 50–950 ramp

primary

#399BB8

secondary

#C79586

accent

#6D4CDC

background

#F8FBFC

surface

#EFF6F9

border

#CAD0D2

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #399BB8

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

Preview Lab → · Contrast checker → · Palette generator →