#317BA9#317BA9

#317BA9 is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.8% C 0.102 H 239.7°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#317BA9
RGB	rgb(49, 123, 169)
HSL	hsl(203, 55%, 43%)
HSV	hsv(203, 71%, 66%)
CMYK	cmyk(71%, 27.2%, 0%, 33.7%)
CIE-LAB	lab(49.11, -7.42, -31.13)
CIE-LCH	lch(49.11, 32.00, 256.60°)
OKLab	oklab(55.77% -0.0514 -0.0878)
OKLCH	oklch(55.77% 0.102 239.7)
XYZ	xyz(15.5082, 17.6817, 40.1240)
Luminance	0.1768 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#317BA9 #A95F31

analogous

#31A99B #317BA9 #313FA9

triadic

#317BA9 #A9317B #7BA931

tetradic

#317BA9 #9B31A9 #A95F31 #3FA931

square

#317BA9 #9B31A9 #A95F31 #3FA931

split-complementary

#317BA9 #A9313F #A99B31

monochromatic

#15364A #23587A #317BA9 #4C9ACB #7CB5D9

Accessibility & contrast

On white

4.63

#317BA9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#317BA9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #317BA9

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##317BA9	#FFFFFF	#000000	##FFFFFF
##317BA9	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#667BAB

Deuteranopia (green-blind)

#5570A8

Tritanopia (blue-blind)

#00878B

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #317ba9;
/* rgb */ color: rgb(49, 123, 169);
/* oklch */ color: oklch(55.8% 0.102 239.7);

Tailwind

colors: {
  custom: {
    50: '#78a1c2',
    500: '#317ba9',
    950: '#000000',
  },
}

SCSS

$custom: #317ba9;
$custom-light: #78a1c2;
$custom-dark: #000000;

JSON

{
  "hex": "#317ba9",
  "rgb": {
    "r": 49,
    "g": 123,
    "b": 169
  },
  "hsl": {
    "h": 203,
    "s": 55.046,
    "l": 42.745
  },
  "oklch": {
    "l": 0.55769,
    "c": 0.10171,
    "h": 239.7
  },
  "luminance": 0.17683
}

Semantic roles & 50–950 ramp

primary

#317BA9

secondary

#C19274

accent

#8349DE

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #317BA9

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

Preview Lab → · Contrast checker → · Palette generator →