#399AC4#399AC4

#399AC4 is a light, moderate cyan. Relative luminance 0.280; OKLCH L 64.8% C 0.108 H 230.6°. Best body text is #000000 at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#399AC4
RGB	rgb(57, 154, 196)
HSL	hsl(198, 55%, 50%)
HSV	hsv(198, 71%, 77%)
CMYK	cmyk(70.9%, 21.4%, 0%, 23.1%)
CIE-LAB	lab(59.86, -14.48, -29.82)
CIE-LCH	lch(59.86, 33.15, 244.11°)
OKLab	oklab(64.77% -0.0688 -0.0837)
OKLCH	oklch(64.77% 0.108 230.6)
XYZ	xyz(23.2028, 27.9640, 56.3886)
Luminance	0.2797 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#399AC4 #C46339

analogous

#39C4A8 #399AC4 #3955C4

triadic

#399AC4 #C4399A #9AC439

tetradic

#399AC4 #A839C4 #C46339 #55C439

square

#399AC4 #A839C4 #C46339 #55C439

split-complementary

#399AC4 #C43955 #C4A839

monochromatic

#1D4F65 #2B7595 #399AC4 #67B2D3 #97CAE1

Accessibility & contrast

On white

3.19

#399AC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.59

#399AC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #399AC4

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##399AC4	#FFFFFF	#000000	##000000
##399AC4	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)

#8598C6

Deuteranopia (green-blind)

#728AC3

Tritanopia (blue-blind)

#00A6A8

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #399ac4;
/* rgb */ color: rgb(57, 154, 196);
/* oklch */ color: oklch(64.8% 0.108 230.6);

Tailwind

colors: {
  custom: {
    50: '#81b7d6',
    500: '#399ac4',
    950: '#000000',
  },
}

SCSS

$custom: #399ac4;
$custom-light: #81b7d6;
$custom-dark: #000000;

JSON

{
  "hex": "#399ac4",
  "rgb": {
    "r": 57,
    "g": 154,
    "b": 196
  },
  "hsl": {
    "h": 198.129,
    "s": 54.941,
    "l": 49.608
  },
  "oklch": {
    "l": 0.64771,
    "c": 0.10835,
    "h": 230.6
  },
  "luminance": 0.27967
}

Semantic roles & 50–950 ramp

primary

#399AC4

secondary

#CCA08D

accent

#764ADE

background

#F8FBFD

surface

#F0F6FA

border

#CBD0D3

text

#0C1114

muted

#7D8083

Preview Lab

Preview with #399AC4

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

Preview Lab → · Contrast checker → · Palette generator →