#3177B9#3177B9

#3177B9 is a mid, vivid cyan. Relative luminance 0.173; OKLCH L 55.7% C 0.124 H 250.0°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#3177B9
RGB	rgb(49, 119, 185)
HSL	hsl(209, 58%, 46%)
HSV	hsv(209, 74%, 73%)
CMYK	cmyk(73.5%, 35.7%, 0%, 27.5%)
CIE-LAB	lab(48.69, 0.72, -41.05)
CIE-LCH	lch(48.69, 41.06, 271.01°)
OKLab	oklab(55.7% -0.0425 -0.1167)
OKLCH	oklch(55.7% 0.124 250)
XYZ	xyz(16.6171, 17.3475, 48.3622)
Luminance	0.1735 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3177B9 #B97331

analogous

#31B9B7 #3177B9 #3133B9

triadic

#3177B9 #B93177 #77B931

tetradic

#3177B9 #B731B9 #B97331 #33B931

square

#3177B9 #B731B9 #B97331 #33B931

split-complementary

#3177B9 #B93133 #B9B731

monochromatic

#173958 #245889 #3177B9 #5595D2 #86B4DF

Accessibility & contrast

On white

4.70

#3177B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#3177B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3177B9

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3177B9	#FFFFFF	#000000	##FFFFFF
##3177B9	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#597BBC

Deuteranopia (green-blind)

#456EB8

Tritanopia (blue-blind)

#00878F

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3177b9;
/* rgb */ color: rgb(49, 119, 185);
/* oklch */ color: oklch(55.7% 0.124 250.0);

Tailwind

colors: {
  custom: {
    50: '#7b9dce',
    500: '#3177b9',
    950: '#000000',
  },
}

SCSS

$custom: #3177b9;
$custom-light: #7b9dce;
$custom-dark: #000000;

JSON

{
  "hex": "#3177b9",
  "rgb": {
    "r": 49,
    "g": 119,
    "b": 185
  },
  "hsl": {
    "h": 209.118,
    "s": 58.12,
    "l": 45.882
  },
  "oklch": {
    "l": 0.55702,
    "c": 0.12425,
    "h": 250
  },
  "luminance": 0.17349
}

Semantic roles & 50–950 ramp

primary

#3177B9

secondary

#C8A27D

accent

#9246E1

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3177B9

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

Preview Lab → · Contrast checker → · Palette generator →