#317BB1#317BB1

#317BB1 is a mid, moderate cyan. Relative luminance 0.180; OKLCH L 56.2% C 0.111 H 243.9°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#317BB1
RGB	rgb(49, 123, 177)
HSL	hsl(205, 57%, 44%)
HSV	hsv(205, 72%, 69%)
CMYK	cmyk(72.3%, 30.5%, 0%, 30.6%)
CIE-LAB	lab(49.49, -4.57, -35.18)
CIE-LCH	lch(49.49, 35.48, 262.59°)
OKLab	oklab(56.19% -0.0488 -0.0995)
OKLCH	oklch(56.19% 0.111 243.9)
XYZ	xyz(16.2823, 17.9914, 44.2010)
Luminance	0.1799 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#317BB1 #B16731

analogous

#31B1A7 #317BB1 #313BB1

triadic

#317BB1 #B1317B #7BB131

tetradic

#317BB1 #A731B1 #B16731 #3BB131

square

#317BB1 #A731B1 #B16731 #3BB131

split-complementary

#317BB1 #B1313B #B1A731

monochromatic

#163851 #245A81 #317BB1 #5199CF #80B5DC

Accessibility & contrast

On white

4.57

#317BB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#317BB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #317BB1

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##317BB1	#FFFFFF	#000000	##000000
##317BB1	1.00	4.57	4.60	4.60
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#627CB3

Deuteranopia (green-blind)

#5170B0

Tritanopia (blue-blind)

#00888E

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #317bb1;
/* rgb */ color: rgb(49, 123, 177);
/* oklch */ color: oklch(56.2% 0.111 243.9);

Tailwind

colors: {
  custom: {
    50: '#79a1c8',
    500: '#317bb1',
    950: '#000000',
  },
}

SCSS

$custom: #317bb1;
$custom-light: #79a1c8;
$custom-dark: #000000;

JSON

{
  "hex": "#317bb1",
  "rgb": {
    "r": 49,
    "g": 123,
    "b": 177
  },
  "hsl": {
    "h": 205.313,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.56192,
    "c": 0.11085,
    "h": 243.9
  },
  "luminance": 0.17993
}

Semantic roles & 50–950 ramp

primary

#317BB1

secondary

#C59979

accent

#8848E0

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #317BB1

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

Preview Lab → · Contrast checker → · Palette generator →