#317FB1#317FB1

#317FB1 is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 57.1% C 0.108 H 240.7°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#317FB1
RGB	rgb(49, 127, 177)
HSL	hsl(203, 57%, 44%)
HSV	hsv(203, 72%, 69%)
CMYK	cmyk(72.3%, 28.2%, 0%, 30.6%)
CIE-LAB	lab(50.69, -6.92, -33.29)
CIE-LCH	lch(50.69, 34.00, 258.25°)
OKLab	oklab(57.15% -0.0527 -0.094)
OKLCH	oklch(57.15% 0.108 240.7)
XYZ	xyz(16.7887, 19.0041, 44.3698)
Luminance	0.1901 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#317FB1 #B16331

analogous

#31B1A3 #317FB1 #313FB1

triadic

#317FB1 #B1317F #7FB131

tetradic

#317FB1 #A331B1 #B16331 #3FB131

square

#317FB1 #A331B1 #B16331 #3FB131

split-complementary

#317FB1 #B1313F #B1A331

monochromatic

#163A51 #245D81 #317FB1 #519DCF #80B8DC

Accessibility & contrast

On white

4.37

#317FB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.80

#317FB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #317FB1

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##317FB1	#FFFFFF	#000000	##000000
##317FB1	1.00	4.37	4.80	4.80
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.80	21.00	1.00	1.00
##000000	4.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#687FB3

Deuteranopia (green-blind)

#5673B0

Tritanopia (blue-blind)

#008B90

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #317fb1;
/* rgb */ color: rgb(49, 127, 177);
/* oklch */ color: oklch(57.1% 0.108 240.7);

Tailwind

colors: {
  custom: {
    50: '#7aa4c8',
    500: '#317fb1',
    950: '#000000',
  },
}

SCSS

$custom: #317fb1;
$custom-light: #7aa4c8;
$custom-dark: #000000;

JSON

{
  "hex": "#317fb1",
  "rgb": {
    "r": 49,
    "g": 127,
    "b": 177
  },
  "hsl": {
    "h": 203.438,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.57146,
    "c": 0.1078,
    "h": 240.7
  },
  "luminance": 0.19006
}

Semantic roles & 50–950 ramp

primary

#317FB1

secondary

#C59779

accent

#8348E0

background

#F7FAFC

surface

#EEF3F8

border

#C9CDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #317FB1

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

Preview Lab → · Contrast checker → · Palette generator →