#317BB9#317BB9

#317BB9 is a mid, vivid cyan. Relative luminance 0.183; OKLCH L 56.6% C 0.120 H 247.4°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#317BB9
RGB	rgb(49, 123, 185)
HSL	hsl(207, 58%, 46%)
HSV	hsv(207, 74%, 73%)
CMYK	cmyk(73.5%, 33.5%, 0%, 27.5%)
CIE-LAB	lab(49.88, -1.69, -39.18)
CIE-LCH	lch(49.88, 39.21, 267.53°)
OKLab	oklab(56.63% -0.0464 -0.1112)
OKLCH	oklch(56.63% 0.12 247.4)
XYZ	xyz(17.1032, 18.3197, 48.5242)
Luminance	0.1832 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#317BB9 #B96F31

analogous

#31B9B3 #317BB9 #3137B9

triadic

#317BB9 #B9317B #7BB931

tetradic

#317BB9 #B331B9 #B96F31 #37B931

square

#317BB9 #B331B9 #B96F31 #37B931

split-complementary

#317BB9 #B93137 #B9B331

monochromatic

#173B58 #245B89 #317BB9 #5599D2 #86B6DF

Accessibility & contrast

On white

4.50

#317BB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.66

#317BB9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #317BB9

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##317BB9	#FFFFFF	#000000	##000000
##317BB9	1.00	4.50	4.66	4.66
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.66	21.00	1.00	1.00
##000000	4.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F7EBC

Deuteranopia (green-blind)

#4B71B8

Tritanopia (blue-blind)

#008A91

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #317bb9;
/* rgb */ color: rgb(49, 123, 185);
/* oklch */ color: oklch(56.6% 0.120 247.4);

Tailwind

colors: {
  custom: {
    50: '#7ba0ce',
    500: '#317bb9',
    950: '#000000',
  },
}

SCSS

$custom: #317bb9;
$custom-light: #7ba0ce;
$custom-dark: #000000;

JSON

{
  "hex": "#317bb9",
  "rgb": {
    "r": 49,
    "g": 123,
    "b": 185
  },
  "hsl": {
    "h": 207.353,
    "s": 58.12,
    "l": 45.882
  },
  "oklch": {
    "l": 0.56634,
    "c": 0.12048,
    "h": 247.4
  },
  "luminance": 0.18322
}

Semantic roles & 50–950 ramp

primary

#317BB9

secondary

#C8A07D

accent

#8D46E1

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #317BB9

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

Preview Lab → · Contrast checker → · Palette generator →