#317BB0#317BB0

#317BB0 is a mid, moderate cyan. Relative luminance 0.180; OKLCH L 56.1% C 0.110 H 243.4°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#317BB0
RGB	rgb(49, 123, 176)
HSL	hsl(205, 56%, 44%)
HSV	hsv(205, 72%, 69%)
CMYK	cmyk(72.2%, 30.1%, 0%, 31%)
CIE-LAB	lab(49.44, -4.93, -34.68)
CIE-LCH	lch(49.44, 35.03, 261.91°)
OKLab	oklab(56.14% -0.0491 -0.0981)
OKLCH	oklch(56.14% 0.11 243.4)
XYZ	xyz(16.1830, 17.9517, 43.6780)
Luminance	0.1795 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#317BB0 #B06631

analogous

#31B0A6 #317BB0 #313CB0

triadic

#317BB0 #B0317B #7BB031

tetradic

#317BB0 #A631B0 #B06631 #3CB031

square

#317BB0 #A631B0 #B06631 #3CB031

split-complementary

#317BB0 #B0313C #B0A631

monochromatic

#163850 #245A80 #317BB0 #509ACE #80B5DC

Accessibility & contrast

On white

4.57

#317BB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#317BB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #317BB0

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##317BB0	#FFFFFF	#000000	##000000
##317BB0	1.00	4.57	4.59	4.59
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#637CB2

Deuteranopia (green-blind)

#5170AF

Tritanopia (blue-blind)

#00888E

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #317bb0;
/* rgb */ color: rgb(49, 123, 176);
/* oklch */ color: oklch(56.1% 0.110 243.4);

Tailwind

colors: {
  custom: {
    50: '#79a1c8',
    500: '#317bb0',
    950: '#000000',
  },
}

SCSS

$custom: #317bb0;
$custom-light: #79a1c8;
$custom-dark: #000000;

JSON

{
  "hex": "#317bb0",
  "rgb": {
    "r": 49,
    "g": 123,
    "b": 176
  },
  "hsl": {
    "h": 205.039,
    "s": 56.444,
    "l": 44.118
  },
  "oklch": {
    "l": 0.56138,
    "c": 0.10968,
    "h": 243.4
  },
  "luminance": 0.17953
}

Semantic roles & 50–950 ramp

primary

#317BB0

secondary

#C59878

accent

#8748E0

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #317BB0

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

Preview Lab → · Contrast checker → · Palette generator →