#317BBB#317BBB

#317BBB is a mid, vivid cyan. Relative luminance 0.184; OKLCH L 56.7% C 0.123 H 248.1°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#317BBB
RGB	rgb(49, 123, 187)
HSL	hsl(208, 58%, 46%)
HSV	hsv(208, 74%, 73%)
CMYK	cmyk(73.8%, 34.2%, 0%, 26.7%)
CIE-LAB	lab(49.98, -0.96, -40.17)
CIE-LCH	lch(49.98, 40.18, 268.62°)
OKLab	oklab(56.75% -0.0458 -0.1141)
OKLCH	oklch(56.75% 0.123 248.1)
XYZ	xyz(17.3158, 18.4048, 49.6440)
Luminance	0.1841 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#317BBB #BB7131

analogous

#31BBB6 #317BBB #3136BB

triadic

#317BBB #BB317B #7BBB31

tetradic

#317BBB #B631BB #BB7131 #36BB31

square

#317BBB #B631BB #BB7131 #36BB31

split-complementary

#317BBB #BB3136 #BBB631

monochromatic

#183B5A #245B8B #317BBB #5699D3 #87B6E0

Accessibility & contrast

On white

4.49

#317BBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#317BBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #317BBB

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##317BBB	#FFFFFF	#000000	##000000
##317BBB	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7EBE

Deuteranopia (green-blind)

#4A71BA

Tritanopia (blue-blind)

#008A92

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #317bbb;
/* rgb */ color: rgb(49, 123, 187);
/* oklch */ color: oklch(56.7% 0.123 248.1);

Tailwind

colors: {
  custom: {
    50: '#7ba0d0',
    500: '#317bbb',
    950: '#000000',
  },
}

SCSS

$custom: #317bbb;
$custom-light: #7ba0d0;
$custom-dark: #000000;

JSON

{
  "hex": "#317bbb",
  "rgb": {
    "r": 49,
    "g": 123,
    "b": 187
  },
  "hsl": {
    "h": 207.826,
    "s": 58.475,
    "l": 46.275
  },
  "oklch": {
    "l": 0.56747,
    "c": 0.12294,
    "h": 248.1
  },
  "luminance": 0.18407
}

Semantic roles & 50–950 ramp

primary

#317BBB

secondary

#C9A17F

accent

#8E46E2

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #317BBB

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

Preview Lab → · Contrast checker → · Palette generator →