#317DB3#317DB3

#317DB3 is a mid, moderate cyan. Relative luminance 0.186; OKLCH L 56.8% C 0.112 H 243.3°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#317DB3
RGB	rgb(49, 125, 179)
HSL	hsl(205, 57%, 45%)
HSV	hsv(205, 73%, 70%)
CMYK	cmyk(72.6%, 30.2%, 0%, 29.8%)
CIE-LAB	lab(50.18, -5.04, -35.24)
CIE-LCH	lch(50.18, 35.60, 261.86°)
OKLab	oklab(56.78% -0.0501 -0.0997)
OKLCH	oklch(56.78% 0.112 243.3)
XYZ	xyz(16.7338, 18.5730, 45.3421)
Luminance	0.1857 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#317DB3 #B36731

analogous

#31B3A8 #317DB3 #313CB3

triadic

#317DB3 #B3317D #7DB331

tetradic

#317DB3 #A831B3 #B36731 #3CB331

square

#317DB3 #A831B3 #B36731 #3CB331

split-complementary

#317DB3 #B3313C #B3A831

monochromatic

#173A53 #245B83 #317DB3 #529BD0 #82B7DD

Accessibility & contrast

On white

4.45

#317DB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#317DB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #317DB3

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##317DB3	#FFFFFF	#000000	##000000
##317DB3	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#647EB5

Deuteranopia (green-blind)

#5272B2

Tritanopia (blue-blind)

#008A90

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #317db3;
/* rgb */ color: rgb(49, 125, 179);
/* oklch */ color: oklch(56.8% 0.112 243.3);

Tailwind

colors: {
  custom: {
    50: '#7aa2ca',
    500: '#317db3',
    950: '#000000',
  },
}

SCSS

$custom: #317db3;
$custom-light: #7aa2ca;
$custom-dark: #000000;

JSON

{
  "hex": "#317db3",
  "rgb": {
    "r": 49,
    "g": 125,
    "b": 179
  },
  "hsl": {
    "h": 204.923,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.56775,
    "c": 0.11159,
    "h": 243.3
  },
  "luminance": 0.18575
}

Semantic roles & 50–950 ramp

primary

#317DB3

secondary

#C6997A

accent

#8748E0

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0F13

muted

#7C7E82

Preview Lab

Preview with #317DB3

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

Preview Lab → · Contrast checker → · Palette generator →