#3177B2#3177B2

#3177B2 is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.3% C 0.116 H 247.3°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#3177B2
RGB	rgb(49, 119, 178)
HSL	hsl(207, 57%, 45%)
HSV	hsv(207, 72%, 70%)
CMYK	cmyk(72.5%, 33.1%, 0%, 30.2%)
CIE-LAB	lab(48.33, -1.82, -37.57)
CIE-LCH	lch(48.33, 37.62, 267.22°)
OKLab	oklab(55.3% -0.0445 -0.1066)
OKLCH	oklch(55.3% 0.116 247.3)
XYZ	xyz(15.8963, 17.0592, 44.5658)
Luminance	0.1706 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3177B2 #B26C31

analogous

#31B2AD #3177B2 #3137B2

triadic

#3177B2 #B23177 #77B231

tetradic

#3177B2 #AD31B2 #B26C31 #37B231

square

#3177B2 #AD31B2 #B26C31 #37B231

split-complementary

#3177B2 #B23137 #B2AD31

monochromatic

#173752 #245782 #3177B2 #5195CF #81B3DC

Accessibility & contrast

On white

4.76

#3177B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#3177B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3177B2

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3177B2	#FFFFFF	#000000	##FFFFFF
##3177B2	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C79B5

Deuteranopia (green-blind)

#4A6DB1

Tritanopia (blue-blind)

#00858C

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3177b2;
/* rgb */ color: rgb(49, 119, 178);
/* oklch */ color: oklch(55.3% 0.116 247.3);

Tailwind

colors: {
  custom: {
    50: '#799dc9',
    500: '#3177b2',
    950: '#000000',
  },
}

SCSS

$custom: #3177b2;
$custom-light: #799dc9;
$custom-dark: #000000;

JSON

{
  "hex": "#3177b2",
  "rgb": {
    "r": 49,
    "g": 119,
    "b": 178
  },
  "hsl": {
    "h": 207.442,
    "s": 56.828,
    "l": 44.51
  },
  "oklch": {
    "l": 0.55301,
    "c": 0.1155,
    "h": 247.3
  },
  "luminance": 0.17061
}

Semantic roles & 50–950 ramp

primary

#3177B2

secondary

#C59C79

accent

#8D48E0

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3177B2

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

Preview Lab → · Contrast checker → · Palette generator →