#317DB1#317DB1

#317DB1 is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.7% C 0.109 H 242.3°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#317DB1
RGB	rgb(49, 125, 177)
HSL	hsl(204, 57%, 44%)
HSV	hsv(204, 72%, 69%)
CMYK	cmyk(72.3%, 29.4%, 0%, 30.6%)
CIE-LAB	lab(50.09, -5.75, -34.24)
CIE-LCH	lch(50.09, 34.72, 260.46°)
OKLab	oklab(56.67% -0.0508 -0.0968)
OKLCH	oklch(56.67% 0.109 242.3)
XYZ	xyz(16.5330, 18.4927, 44.2846)
Luminance	0.1850 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#317DB1 #B16531

analogous

#31B1A5 #317DB1 #313DB1

triadic

#317DB1 #B1317D #7DB131

tetradic

#317DB1 #A531B1 #B16531 #3DB131

square

#317DB1 #A531B1 #B16531 #3DB131

split-complementary

#317DB1 #B1313D #B1A531

monochromatic

#163951 #245B81 #317DB1 #519BCF #80B7DC

Accessibility & contrast

On white

4.47

#317DB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#317DB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #317DB1

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##317DB1	#FFFFFF	#000000	##000000
##317DB1	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#657EB3

Deuteranopia (green-blind)

#5372B0

Tritanopia (blue-blind)

#008A8F

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #317db1;
/* rgb */ color: rgb(49, 125, 177);
/* oklch */ color: oklch(56.7% 0.109 242.3);

Tailwind

colors: {
  custom: {
    50: '#79a2c8',
    500: '#317db1',
    950: '#000000',
  },
}

SCSS

$custom: #317db1;
$custom-light: #79a2c8;
$custom-dark: #000000;

JSON

{
  "hex": "#317db1",
  "rgb": {
    "r": 49,
    "g": 125,
    "b": 177
  },
  "hsl": {
    "h": 204.375,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.56668,
    "c": 0.10928,
    "h": 242.3
  },
  "luminance": 0.18495
}

Semantic roles & 50–950 ramp

primary

#317DB1

secondary

#C59879

accent

#8648E0

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0F13

muted

#7C7E82

Preview Lab

Preview with #317DB1

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

Preview Lab → · Contrast checker → · Palette generator →