#318AB4#318AB4

#318AB4 is a mid, moderate cyan. Relative luminance 0.221; OKLCH L 59.9% C 0.104 H 233.0°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#318AB4
RGB	rgb(49, 138, 180)
HSL	hsl(199, 57%, 45%)
HSV	hsv(199, 73%, 71%)
CMYK	cmyk(72.8%, 23.3%, 0%, 29.4%)
CIE-LAB	lab(54.16, -12.17, -29.61)
CIE-LCH	lch(54.16, 32.01, 247.66°)
OKLab	oklab(59.94% -0.0627 -0.0833)
OKLCH	oklch(59.94% 0.104 233)
XYZ	xyz(18.5900, 22.1231, 46.4616)
Luminance	0.2213 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#318AB4 #B45B31

analogous

#31B49D #318AB4 #3148B4

triadic

#318AB4 #B4318A #8AB431

tetradic

#318AB4 #9D31B4 #B45B31 #48B431

square

#318AB4 #9D31B4 #B45B31 #48B431

split-complementary

#318AB4 #B43148 #B49D31

monochromatic

#174054 #246584 #318AB4 #52A8D0 #82C0DD

Accessibility & contrast

On white

3.87

#318AB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#318AB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #318AB4

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##318AB4	#FFFFFF	#000000	##000000
##318AB4	1.00	3.87	5.43	5.43
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.43	21.00	1.00	1.00
##000000	5.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7589B6

Deuteranopia (green-blind)

#637CB3

Tritanopia (blue-blind)

#009598

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #318ab4;
/* rgb */ color: rgb(49, 138, 180);
/* oklch */ color: oklch(59.9% 0.104 233.0);

Tailwind

colors: {
  custom: {
    50: '#7bacca',
    500: '#318ab4',
    950: '#000000',
  },
}

SCSS

$custom: #318ab4;
$custom-light: #7bacca;
$custom-dark: #000000;

JSON

{
  "hex": "#318ab4",
  "rgb": {
    "r": 49,
    "g": 138,
    "b": 180
  },
  "hsl": {
    "h": 199.237,
    "s": 57.205,
    "l": 44.902
  },
  "oklch": {
    "l": 0.59944,
    "c": 0.10424,
    "h": 233
  },
  "luminance": 0.22125
}

Semantic roles & 50–950 ramp

primary

#318AB4

secondary

#C6937B

accent

#7847E0

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #318AB4

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

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