#317DB4#317DB4

#317DB4 is a mid, moderate cyan. Relative luminance 0.186; OKLCH L 56.8% C 0.113 H 243.8°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#317DB4
RGB	rgb(49, 125, 180)
HSL	hsl(205, 57%, 45%)
HSV	hsv(205, 73%, 71%)
CMYK	cmyk(72.8%, 30.6%, 0%, 29.4%)
CIE-LAB	lab(50.23, -4.68, -35.74)
CIE-LCH	lch(50.23, 36.05, 262.54°)
OKLab	oklab(56.83% -0.0498 -0.1012)
OKLCH	oklch(56.83% 0.113 243.8)
XYZ	xyz(16.8353, 18.6136, 45.8767)
Luminance	0.1862 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#317DB4 #B46831

analogous

#31B4AA #317DB4 #313BB4

triadic

#317DB4 #B4317D #7DB431

tetradic

#317DB4 #AA31B4 #B46831 #3BB431

square

#317DB4 #AA31B4 #B46831 #3BB431

split-complementary

#317DB4 #B4313B #B4AA31

monochromatic

#173A54 #245C84 #317DB4 #529BD0 #82B7DD

Accessibility & contrast

On white

4.45

#317DB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#317DB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #317DB4

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##317DB4	#FFFFFF	#000000	##000000
##317DB4	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)

#647EB6

Deuteranopia (green-blind)

#5272B3

Tritanopia (blue-blind)

#008A90

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #317db4;
/* rgb */ color: rgb(49, 125, 180);
/* oklch */ color: oklch(56.8% 0.113 243.8);

Tailwind

colors: {
  custom: {
    50: '#7aa2ca',
    500: '#317db4',
    950: '#000000',
  },
}

SCSS

$custom: #317db4;
$custom-light: #7aa2ca;
$custom-dark: #000000;

JSON

{
  "hex": "#317db4",
  "rgb": {
    "r": 49,
    "g": 125,
    "b": 180
  },
  "hsl": {
    "h": 205.191,
    "s": 57.205,
    "l": 44.902
  },
  "oklch": {
    "l": 0.56829,
    "c": 0.11276,
    "h": 243.8
  },
  "luminance": 0.18615
}

Semantic roles & 50–950 ramp

primary

#317DB4

secondary

#C69A7B

accent

#8847E0

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0F13

muted

#7C7E82

Preview Lab

Preview with #317DB4

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

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