#398BD9#398BD9

#398BD9 is a light, vivid cyan. Relative luminance 0.243; OKLCH L 62.4% C 0.142 H 250.3°. Best body text is #000000 at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#398BD9
RGB	rgb(57, 139, 217)
HSL	hsl(209, 68%, 54%)
HSV	hsv(209, 74%, 85%)
CMYK	cmyk(73.7%, 35.9%, 0%, 14.9%)
CIE-LAB	lab(56.43, 1.36, -46.99)
CIE-LCH	lch(56.43, 47.01, 271.65°)
OKLab	oklab(62.38% -0.0479 -0.1337)
OKLCH	oklch(62.38% 0.142 250.3)
XYZ	xyz(23.4396, 24.3422, 69.0954)
Luminance	0.2434 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#398BD9 #D98739

analogous

#39D9D7 #398BD9 #393BD9

triadic

#398BD9 #D9398B #8BD939

tetradic

#398BD9 #D739D9 #D98739 #3BD939

square

#398BD9 #D739D9 #D98739 #3BD939

split-complementary

#398BD9 #D9393B #D9D739

monochromatic

#184D7F #226CB3 #398BD9 #6CA9E3 #A0C7ED

Accessibility & contrast

On white

3.58

#398BD9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.87

#398BD9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #398BD9

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##398BD9	#FFFFFF	#000000	##000000
##398BD9	1.00	3.58	5.87	5.87
#FFFFFF	3.58	1.00	21.00	21.00
#000000	5.87	21.00	1.00	1.00
##000000	5.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#678FDC

Deuteranopia (green-blind)

#4F81D7

Tritanopia (blue-blind)

#009DA8

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #398bd9;
/* rgb */ color: rgb(57, 139, 217);
/* oklch */ color: oklch(62.4% 0.142 250.3);

Tailwind

colors: {
  custom: {
    50: '#84ace5',
    500: '#398bd9',
    950: '#000000',
  },
}

SCSS

$custom: #398bd9;
$custom-light: #84ace5;
$custom-dark: #000000;

JSON

{
  "hex": "#398bd9",
  "rgb": {
    "r": 57,
    "g": 139,
    "b": 217
  },
  "hsl": {
    "h": 209.25,
    "s": 67.797,
    "l": 53.725
  },
  "oklch": {
    "l": 0.62378,
    "c": 0.14205,
    "h": 250.3
  },
  "luminance": 0.24345
}

Semantic roles & 50–950 ramp

primary

#398BD9

secondary

#D9B695

accent

#923DEB

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0C1016

muted

#7D7F84

Preview Lab

Preview with #398BD9

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

Preview Lab → · Contrast checker → · Palette generator →