#317FB3#317FB3

#317FB3 is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 57.3% C 0.110 H 241.7°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#317FB3
RGB	rgb(49, 127, 179)
HSL	hsl(204, 57%, 45%)
HSV	hsv(204, 73%, 70%)
CMYK	cmyk(72.6%, 29.1%, 0%, 29.8%)
CIE-LAB	lab(50.79, -6.22, -34.30)
CIE-LCH	lch(50.79, 34.86, 259.73°)
OKLab	oklab(57.25% -0.0521 -0.0969)
OKLCH	oklch(57.25% 0.11 241.7)
XYZ	xyz(16.9895, 19.0845, 45.4274)
Luminance	0.1909 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#317FB3 #B36531

analogous

#31B3A6 #317FB3 #313EB3

triadic

#317FB3 #B3317F #7FB331

tetradic

#317FB3 #A631B3 #B36531 #3EB331

square

#317FB3 #A631B3 #B36531 #3EB331

split-complementary

#317FB3 #B3313E #B3A631

monochromatic

#173B53 #245D83 #317FB3 #529DD0 #82B8DD

Accessibility & contrast

On white

4.36

#317FB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#317FB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #317FB3

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##317FB3	#FFFFFF	#000000	##000000
##317FB3	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6780B5

Deuteranopia (green-blind)

#5573B2

Tritanopia (blue-blind)

#008C91

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #317fb3;
/* rgb */ color: rgb(49, 127, 179);
/* oklch */ color: oklch(57.3% 0.110 241.7);

Tailwind

colors: {
  custom: {
    50: '#7aa3ca',
    500: '#317fb3',
    950: '#000000',
  },
}

SCSS

$custom: #317fb3;
$custom-light: #7aa3ca;
$custom-dark: #000000;

JSON

{
  "hex": "#317fb3",
  "rgb": {
    "r": 49,
    "g": 127,
    "b": 179
  },
  "hsl": {
    "h": 204,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.57252,
    "c": 0.11004,
    "h": 241.7
  },
  "luminance": 0.19086
}

Semantic roles & 50–950 ramp

primary

#317FB3

secondary

#C6987A

accent

#8548E0

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #317FB3

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

Preview Lab → · Contrast checker → · Palette generator →