#319BB4#319BB4

#319BB4 is a light, moderate cyan. Relative luminance 0.274; OKLCH L 64.1% C 0.100 H 217.1°. Best body text is #000000 at 6.48:1 contrast (WCAG AA passes).

Color values

HEX	#319BB4
RGB	rgb(49, 155, 180)
HSL	hsl(191, 57%, 45%)
HSV	hsv(191, 73%, 71%)
CMYK	cmyk(72.8%, 13.9%, 0%, 29.4%)
CIE-LAB	lab(59.33, -21.37, -21.63)
CIE-LCH	lch(59.33, 30.41, 225.34°)
OKLab	oklab(64.09% -0.0798 -0.0603)
OKLCH	oklch(64.09% 0.1 217.1)
XYZ	xyz(21.2227, 27.3885, 47.3392)
Luminance	0.2739 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#319BB4 #B44A31

analogous

#31B48B #319BB4 #315AB4

triadic

#319BB4 #B4319B #9BB431

tetradic

#319BB4 #8B31B4 #B44A31 #5AB431

square

#319BB4 #8B31B4 #B44A31 #5AB431

split-complementary

#319BB4 #B4315A #B48B31

monochromatic

#174854 #247284 #319BB4 #52B8D0 #82CCDD

Accessibility & contrast

On white

3.24

#319BB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.48

#319BB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #319BB4

6.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##319BB4	#FFFFFF	#000000	##000000
##319BB4	1.00	3.24	6.48	6.48
#FFFFFF	3.24	1.00	21.00	21.00
#000000	6.48	21.00	1.00	1.00
##000000	6.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8B96B5

Deuteranopia (green-blind)

#7889B4

Tritanopia (blue-blind)

#00A4A3

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #319bb4;
/* rgb */ color: rgb(49, 155, 180);
/* oklch */ color: oklch(64.1% 0.100 217.1);

Tailwind

colors: {
  custom: {
    50: '#7cb8ca',
    500: '#319bb4',
    950: '#000000',
  },
}

SCSS

$custom: #319bb4;
$custom-light: #7cb8ca;
$custom-dark: #000000;

JSON

{
  "hex": "#319bb4",
  "rgb": {
    "r": 49,
    "g": 155,
    "b": 180
  },
  "hsl": {
    "h": 191.45,
    "s": 57.205,
    "l": 44.902
  },
  "oklch": {
    "l": 0.64088,
    "c": 0.10006,
    "h": 217.1
  },
  "luminance": 0.27391
}

Semantic roles & 50–950 ramp

primary

#319BB4

secondary

#C6897B

accent

#6547E0

background

#F8FBFC

surface

#EFF6F8

border

#CAD0D1

text

#0B1113

muted

#7C8082

Preview Lab

Preview with #319BB4

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

Preview Lab → · Contrast checker → · Palette generator →