#439BB4#439BB4

#439BB4 is a light, moderate cyan. Relative luminance 0.279; OKLCH L 64.6% C 0.091 H 219.5°. Best body text is #000000 at 6.59:1 contrast (WCAG AA passes).

Color values

HEX	#439BB4
RGB	rgb(67, 155, 180)
HSL	hsl(193, 46%, 48%)
HSV	hsv(193, 63%, 71%)
CMYK	cmyk(62.8%, 13.9%, 0%, 29.4%)
CIE-LAB	lab(59.82, -18.58, -20.83)
CIE-LCH	lch(59.82, 27.91, 228.27°)
OKLab	oklab(64.62% -0.0702 -0.058)
OKLCH	oklch(64.62% 0.091 219.5)
XYZ	xyz(22.2710, 27.9290, 47.3883)
Luminance	0.2793 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#439BB4 #B45C43

analogous

#43B494 #439BB4 #4362B4

triadic

#439BB4 #B4439B #9BB443

tetradic

#439BB4 #9443B4 #B45C43 #62B443

square

#439BB4 #9443B4 #B45C43 #62B443

split-complementary

#439BB4 #B44362 #B49443

monochromatic

#224E5B #327587 #439BB4 #6CB4C8 #99CBD9

Accessibility & contrast

On white

3.19

#439BB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.59

#439BB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #439BB4

6.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##439BB4	#FFFFFF	#000000	##000000
##439BB4	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)

#8B97B5

Deuteranopia (green-blind)

#7B8BB4

Tritanopia (blue-blind)

#00A3A3

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #439bb4;
/* rgb */ color: rgb(67, 155, 180);
/* oklch */ color: oklch(64.6% 0.091 219.5);

Tailwind

colors: {
  custom: {
    50: '#83b8ca',
    500: '#439bb4',
    950: '#000000',
  },
}

SCSS

$custom: #439bb4;
$custom-light: #83b8ca;
$custom-dark: #000000;

JSON

{
  "hex": "#439bb4",
  "rgb": {
    "r": 67,
    "g": 155,
    "b": 180
  },
  "hsl": {
    "h": 193.274,
    "s": 45.749,
    "l": 48.431
  },
  "oklch": {
    "l": 0.64622,
    "c": 0.09106,
    "h": 219.5
  },
  "luminance": 0.27931
}

Semantic roles & 50–950 ramp

primary

#439BB4

secondary

#C59A8E

accent

#6F52D5

background

#F8FBFC

surface

#F0F6F8

border

#CBD0D1

text

#0C1113

muted

#7D8082

Preview Lab

Preview with #439BB4

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

Preview Lab → · Contrast checker → · Palette generator →