#318BB5#318BB5

#318BB5 is a mid, moderate cyan. Relative luminance 0.225; OKLCH L 60.2% C 0.105 H 232.8°. Best body text is #000000 at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#318BB5
RGB	rgb(49, 139, 181)
HSL	hsl(199, 57%, 45%)
HSV	hsv(199, 73%, 71%)
CMYK	cmyk(72.9%, 23.2%, 0%, 29%)
CIE-LAB	lab(54.50, -12.38, -29.64)
CIE-LCH	lch(54.50, 32.13, 247.33°)
OKLab	oklab(60.24% -0.0634 -0.0833)
OKLCH	oklch(60.24% 0.105 232.8)
XYZ	xyz(18.8364, 22.4522, 47.0481)
Luminance	0.2245 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#318BB5 #B55B31

analogous

#31B59D #318BB5 #3149B5

triadic

#318BB5 #B5318B #8BB531

tetradic

#318BB5 #9D31B5 #B55B31 #49B531

square

#318BB5 #9D31B5 #B55B31 #49B531

split-complementary

#318BB5 #B53149 #B59D31

monochromatic

#174155 #246685 #318BB5 #53A8D0 #83C1DD

Accessibility & contrast

On white

3.82

#318BB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.49

#318BB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #318BB5

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##318BB5	#FFFFFF	#000000	##000000
##318BB5	1.00	3.82	5.49	5.49
#FFFFFF	3.82	1.00	21.00	21.00
#000000	5.49	21.00	1.00	1.00
##000000	5.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#768AB7

Deuteranopia (green-blind)

#647DB4

Tritanopia (blue-blind)

#009699

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #318bb5;
/* rgb */ color: rgb(49, 139, 181);
/* oklch */ color: oklch(60.2% 0.105 232.8);

Tailwind

colors: {
  custom: {
    50: '#7baccb',
    500: '#318bb5',
    950: '#000000',
  },
}

SCSS

$custom: #318bb5;
$custom-light: #7baccb;
$custom-dark: #000000;

JSON

{
  "hex": "#318bb5",
  "rgb": {
    "r": 49,
    "g": 139,
    "b": 181
  },
  "hsl": {
    "h": 199.091,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.60235,
    "c": 0.1047,
    "h": 232.8
  },
  "luminance": 0.22454
}

Semantic roles & 50–950 ramp

primary

#318BB5

secondary

#C7937B

accent

#7847E1

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #318BB5

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

Preview Lab → · Contrast checker → · Palette generator →