#317BDB#317BDB

#317BDB is a mid, vivid cyan. Relative luminance 0.199; OKLCH L 58.7% C 0.164 H 256.5°. Best body text is #000000 at 4.99:1 contrast (WCAG AA passes).

Color values

HEX	#317BDB
RGB	rgb(49, 123, 219)
HSL	hsl(214, 70%, 53%)
HSV	hsv(214, 78%, 86%)
CMYK	cmyk(77.6%, 43.8%, 0%, 14.1%)
CIE-LAB	lab(51.76, 10.83, -55.57)
CIE-LCH	lch(51.76, 56.62, 281.03°)
OKLab	oklab(58.71% -0.0383 -0.1593)
OKLCH	oklch(58.71% 0.164 256.5)
XYZ	xyz(21.1310, 19.9309, 69.7374)
Luminance	0.1993 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#317BDB #DB9131

analogous

#31D0DB #317BDB #3C31DB

triadic

#317BDB #DB317B #7BDB31

tetradic

#317BDB #DB31D0 #DB9131 #31DB3C

square

#317BDB #DB31D0 #DB9131 #31DB3C

split-complementary

#317BDB #DB3C31 #D0DB31

monochromatic

#16427C #1F5EB0 #317BDB #659CE4 #99BEED

Accessibility & contrast

On white

4.21

#317BDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.99

#317BDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #317BDB

4.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##317BDB	#FFFFFF	#000000	##000000
##317BDB	1.00	4.21	4.99	4.99
#FFFFFF	4.21	1.00	21.00	21.00
#000000	4.99	21.00	1.00	1.00
##000000	4.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A84DF

Deuteranopia (green-blind)

#2774D9

Tritanopia (blue-blind)

#0092A0

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #317bdb;
/* rgb */ color: rgb(49, 123, 219);
/* oklch */ color: oklch(58.7% 0.164 256.5);

Tailwind

colors: {
  custom: {
    50: '#81a0e7',
    500: '#317bdb',
    950: '#000000',
  },
}

SCSS

$custom: #317bdb;
$custom-light: #81a0e7;
$custom-dark: #000000;

JSON

{
  "hex": "#317bdb",
  "rgb": {
    "r": 49,
    "g": 123,
    "b": 219
  },
  "hsl": {
    "h": 213.882,
    "s": 70.248,
    "l": 52.549
  },
  "oklch": {
    "l": 0.58709,
    "c": 0.1638,
    "h": 256.5
  },
  "luminance": 0.19933
}

Semantic roles & 50–950 ramp

primary

#317BDB

secondary

#D9B98F

accent

#9F3BED

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #317BDB

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

Preview Lab → · Contrast checker → · Palette generator →