#398DD9#398DD9

#398DD9 is a light, vivid cyan. Relative luminance 0.249; OKLCH L 62.8% C 0.140 H 249.2°. Best body text is #000000 at 5.99:1 contrast (WCAG AA passes).

Color values

HEX	#398DD9
RGB	rgb(57, 141, 217)
HSL	hsl(209, 68%, 54%)
HSV	hsv(209, 74%, 85%)
CMYK	cmyk(73.7%, 35%, 0%, 14.9%)
CIE-LAB	lab(57.00, 0.18, -46.08)
CIE-LCH	lch(57.00, 46.08, 270.22°)
OKLab	oklab(62.83% -0.0497 -0.131)
OKLCH	oklch(62.83% 0.14 249.2)
XYZ	xyz(23.7319, 24.9267, 69.1928)
Luminance	0.2493 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#398DD9 #D98539

analogous

#39D9D5 #398DD9 #393DD9

triadic

#398DD9 #D9398D #8DD939

tetradic

#398DD9 #D539D9 #D98539 #3DD939

square

#398DD9 #D539D9 #D98539 #3DD939

split-complementary

#398DD9 #D9393D #D9D539

monochromatic

#184E7F #226EB3 #398DD9 #6CABE3 #A0C8ED

Accessibility & contrast

On white

3.51

#398DD9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.99

#398DD9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #398DD9

5.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##398DD9	#FFFFFF	#000000	##000000
##398DD9	1.00	3.51	5.99	5.99
#FFFFFF	3.51	1.00	21.00	21.00
#000000	5.99	21.00	1.00	1.00
##000000	5.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A91DC

Deuteranopia (green-blind)

#5382D8

Tritanopia (blue-blind)

#009FA9

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #398dd9;
/* rgb */ color: rgb(57, 141, 217);
/* oklch */ color: oklch(62.8% 0.140 249.2);

Tailwind

colors: {
  custom: {
    50: '#84ade5',
    500: '#398dd9',
    950: '#000000',
  },
}

SCSS

$custom: #398dd9;
$custom-light: #84ade5;
$custom-dark: #000000;

JSON

{
  "hex": "#398dd9",
  "rgb": {
    "r": 57,
    "g": 141,
    "b": 217
  },
  "hsl": {
    "h": 208.5,
    "s": 67.797,
    "l": 53.725
  },
  "oklch": {
    "l": 0.62829,
    "c": 0.14015,
    "h": 249.2
  },
  "luminance": 0.24929
}

Semantic roles & 50–950 ramp

primary

#398DD9

secondary

#D9B595

accent

#903DEB

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0C1016

muted

#7D7F84

Preview Lab

Preview with #398DD9

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

Preview Lab → · Contrast checker → · Palette generator →