#316DB3#316DB3

#316DB3 is a mid, vivid cyan. Relative luminance 0.148; OKLCH L 53.0% C 0.127 H 254.2°. Best body text is #FFFFFF at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#316DB3
RGB	rgb(49, 109, 179)
HSL	hsl(212, 57%, 45%)
HSV	hsv(212, 73%, 70%)
CMYK	cmyk(72.6%, 39.1%, 0%, 29.8%)
CIE-LAB	lab(45.42, 4.68, -42.77)
CIE-LCH	lch(45.42, 43.03, 276.24°)
OKLab	oklab(53.03% -0.0346 -0.1219)
OKLCH	oklch(53.03% 0.127 254.2)
XYZ	xyz(14.8689, 14.8433, 44.7205)
Luminance	0.1484 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#316DB3 #B37731

analogous

#31AEB3 #316DB3 #3631B3

triadic

#316DB3 #B3316D #6DB331

tetradic

#316DB3 #B331AE #B37731 #31B336

square

#316DB3 #B331AE #B37731 #31B336

split-complementary

#316DB3 #B33631 #AEB331

monochromatic

#173253 #245083 #316DB3 #528CD0 #82ACDD

Accessibility & contrast

On white

5.29

#316DB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.97

#316DB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #316DB3

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##316DB3	#FFFFFF	#000000	##FFFFFF
##316DB3	1.00	5.29	3.97	5.29
#FFFFFF	5.29	1.00	21.00	1.00
#000000	3.97	21.00	1.00	21.00
##FFFFFF	5.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D72B6

Deuteranopia (green-blind)

#3866B2

Tritanopia (blue-blind)

#007D87

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #316db3;
/* rgb */ color: rgb(49, 109, 179);
/* oklch */ color: oklch(53.0% 0.127 254.2);

Tailwind

colors: {
  custom: {
    50: '#7a96ca',
    500: '#316db3',
    950: '#000000',
  },
}

SCSS

$custom: #316db3;
$custom-light: #7a96ca;
$custom-dark: #000000;

JSON

{
  "hex": "#316db3",
  "rgb": {
    "r": 49,
    "g": 109,
    "b": 179
  },
  "hsl": {
    "h": 212.308,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.53033,
    "c": 0.12673,
    "h": 254.2
  },
  "luminance": 0.14845
}

Semantic roles & 50–950 ramp

primary

#316DB3

secondary

#C6A37A

accent

#9A48E0

background

#F7F9FC

surface

#EEF1F8

border

#C9CBD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #316DB3

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

Preview Lab → · Contrast checker → · Palette generator →