#316DB4#316DB4

#316DB4 is a mid, vivid cyan. Relative luminance 0.149; OKLCH L 53.1% C 0.128 H 254.4°. Best body text is #FFFFFF at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#316DB4
RGB	rgb(49, 109, 180)
HSL	hsl(213, 57%, 45%)
HSV	hsv(213, 73%, 71%)
CMYK	cmyk(72.8%, 39.4%, 0%, 29.4%)
CIE-LAB	lab(45.47, 5.05, -43.27)
CIE-LCH	lch(45.47, 43.56, 276.65°)
OKLab	oklab(53.1% -0.0344 -0.1234)
OKLCH	oklch(53.1% 0.128 254.4)
XYZ	xyz(14.9704, 14.8839, 45.2551)
Luminance	0.1489 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#316DB4 #B47831

analogous

#31AFB4 #316DB4 #3731B4

triadic

#316DB4 #B4316D #6DB431

tetradic

#316DB4 #B431AF #B47831 #31B437

square

#316DB4 #B431AF #B47831 #31B437

split-complementary

#316DB4 #B43731 #AFB431

monochromatic

#173354 #245084 #316DB4 #528CD0 #82ACDD

Accessibility & contrast

On white

5.28

#316DB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#316DB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #316DB4

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##316DB4	#FFFFFF	#000000	##FFFFFF
##316DB4	1.00	5.28	3.98	5.28
#FFFFFF	5.28	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C72B7

Deuteranopia (green-blind)

#3766B3

Tritanopia (blue-blind)

#007E88

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #316db4;
/* rgb */ color: rgb(49, 109, 180);
/* oklch */ color: oklch(53.1% 0.128 254.4);

Tailwind

colors: {
  custom: {
    50: '#7a96cb',
    500: '#316db4',
    950: '#000000',
  },
}

SCSS

$custom: #316db4;
$custom-light: #7a96cb;
$custom-dark: #000000;

JSON

{
  "hex": "#316db4",
  "rgb": {
    "r": 49,
    "g": 109,
    "b": 180
  },
  "hsl": {
    "h": 212.519,
    "s": 57.205,
    "l": 44.902
  },
  "oklch": {
    "l": 0.53095,
    "c": 0.12807,
    "h": 254.4
  },
  "luminance": 0.14886
}

Semantic roles & 50–950 ramp

primary

#316DB4

secondary

#C6A47B

accent

#9A47E0

background

#F8F9FC

surface

#EFF1F8

border

#CACBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #316DB4

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

Preview Lab → · Contrast checker → · Palette generator →