#318CB5#318CB5

#318CB5 is a mid, moderate cyan. Relative luminance 0.227; OKLCH L 60.5% C 0.104 H 231.9°. Best body text is #000000 at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#318CB5
RGB	rgb(49, 140, 181)
HSL	hsl(199, 57%, 45%)
HSV	hsv(199, 73%, 71%)
CMYK	cmyk(72.9%, 22.7%, 0%, 29%)
CIE-LAB	lab(54.81, -12.94, -29.17)
CIE-LCH	lch(54.81, 31.91, 246.08°)
OKLab	oklab(60.48% -0.0644 -0.082)
OKLCH	oklch(60.48% 0.104 231.9)
XYZ	xyz(18.9819, 22.7431, 47.0966)
Luminance	0.2275 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#318CB5 #B55A31

analogous

#31B59C #318CB5 #314AB5

triadic

#318CB5 #B5318C #8CB531

tetradic

#318CB5 #9C31B5 #B55A31 #4AB531

square

#318CB5 #9C31B5 #B55A31 #4AB531

split-complementary

#318CB5 #B5314A #B59C31

monochromatic

#174155 #246785 #318CB5 #53A9D0 #83C1DD

Accessibility & contrast

On white

3.78

#318CB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.55

#318CB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #318CB5

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##318CB5	#FFFFFF	#000000	##000000
##318CB5	1.00	3.78	5.55	5.55
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.55	21.00	1.00	1.00
##000000	5.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#778AB7

Deuteranopia (green-blind)

#667EB4

Tritanopia (blue-blind)

#00979A

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #318cb5;
/* rgb */ color: rgb(49, 140, 181);
/* oklch */ color: oklch(60.5% 0.104 231.9);

Tailwind

colors: {
  custom: {
    50: '#7badcb',
    500: '#318cb5',
    950: '#000000',
  },
}

SCSS

$custom: #318cb5;
$custom-light: #7badcb;
$custom-dark: #000000;

JSON

{
  "hex": "#318cb5",
  "rgb": {
    "r": 49,
    "g": 140,
    "b": 181
  },
  "hsl": {
    "h": 198.636,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.60476,
    "c": 0.10424,
    "h": 231.9
  },
  "luminance": 0.22745
}

Semantic roles & 50–950 ramp

primary

#318CB5

secondary

#C7937B

accent

#7747E1

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #318CB5

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

Preview Lab → · Contrast checker → · Palette generator →