#318BB3#318BB3

#318BB3 is a mid, moderate cyan. Relative luminance 0.224; OKLCH L 60.1% C 0.103 H 231.5°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#318BB3
RGB	rgb(49, 139, 179)
HSL	hsl(198, 57%, 45%)
HSV	hsv(198, 73%, 70%)
CMYK	cmyk(72.6%, 22.3%, 0%, 29.8%)
CIE-LAB	lab(54.42, -13.07, -28.63)
CIE-LCH	lch(54.42, 31.47, 245.47°)
OKLab	oklab(60.14% -0.0641 -0.0804)
OKLCH	oklch(60.14% 0.103 231.5)
XYZ	xyz(18.6327, 22.3707, 45.9751)
Luminance	0.2237 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#318BB3 #B35931

analogous

#31B39A #318BB3 #314AB3

triadic

#318BB3 #B3318B #8BB331

tetradic

#318BB3 #9A31B3 #B35931 #4AB331

square

#318BB3 #9A31B3 #B35931 #4AB331

split-complementary

#318BB3 #B3314A #B39A31

monochromatic

#174053 #246683 #318BB3 #52A9D0 #82C1DD

Accessibility & contrast

On white

3.84

#318BB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#318BB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #318BB3

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##318BB3	#FFFFFF	#000000	##000000
##318BB3	1.00	3.84	5.47	5.47
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.47	21.00	1.00	1.00
##000000	5.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7789B5

Deuteranopia (green-blind)

#657DB2

Tritanopia (blue-blind)

#009698

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #318bb3;
/* rgb */ color: rgb(49, 139, 179);
/* oklch */ color: oklch(60.1% 0.103 231.5);

Tailwind

colors: {
  custom: {
    50: '#7aacca',
    500: '#318bb3',
    950: '#000000',
  },
}

SCSS

$custom: #318bb3;
$custom-light: #7aacca;
$custom-dark: #000000;

JSON

{
  "hex": "#318bb3",
  "rgb": {
    "r": 49,
    "g": 139,
    "b": 179
  },
  "hsl": {
    "h": 198.462,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.60138,
    "c": 0.10285,
    "h": 231.5
  },
  "luminance": 0.22373
}

Semantic roles & 50–950 ramp

primary

#318BB3

secondary

#C6917A

accent

#7748E0

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #318BB3

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

Preview Lab → · Contrast checker → · Palette generator →