#3177B8#3177B8

#3177B8 is a mid, vivid cyan. Relative luminance 0.173; OKLCH L 55.6% C 0.123 H 249.6°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#3177B8
RGB	rgb(49, 119, 184)
HSL	hsl(209, 58%, 46%)
HSV	hsv(209, 73%, 72%)
CMYK	cmyk(73.4%, 35.3%, 0%, 27.8%)
CIE-LAB	lab(48.64, 0.36, -40.56)
CIE-LCH	lch(48.64, 40.56, 270.51°)
OKLab	oklab(55.64% -0.0428 -0.1153)
OKLCH	oklch(55.64% 0.123 249.6)
XYZ	xyz(16.5119, 17.3055, 47.8082)
Luminance	0.1731 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3177B8 #B87231

analogous

#31B8B5 #3177B8 #3133B8

triadic

#3177B8 #B83177 #77B831

tetradic

#3177B8 #B531B8 #B87231 #33B831

square

#3177B8 #B531B8 #B87231 #33B831

split-complementary

#3177B8 #B83133 #B8B531

monochromatic

#173857 #245888 #3177B8 #5595D2 #85B3DE

Accessibility & contrast

On white

4.71

#3177B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.46

#3177B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3177B8

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3177B8	#FFFFFF	#000000	##FFFFFF
##3177B8	1.00	4.71	4.46	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.46	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#597ABB

Deuteranopia (green-blind)

#466EB7

Tritanopia (blue-blind)

#00868F

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3177b8;
/* rgb */ color: rgb(49, 119, 184);
/* oklch */ color: oklch(55.6% 0.123 249.6);

Tailwind

colors: {
  custom: {
    50: '#7b9dcd',
    500: '#3177b8',
    950: '#000000',
  },
}

SCSS

$custom: #3177b8;
$custom-light: #7b9dcd;
$custom-dark: #000000;

JSON

{
  "hex": "#3177b8",
  "rgb": {
    "r": 49,
    "g": 119,
    "b": 184
  },
  "hsl": {
    "h": 208.889,
    "s": 57.94,
    "l": 45.686
  },
  "oklch": {
    "l": 0.55644,
    "c": 0.12299,
    "h": 249.6
  },
  "luminance": 0.17307
}

Semantic roles & 50–950 ramp

primary

#3177B8

secondary

#C8A17D

accent

#9147E1

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3177B8

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

Preview Lab → · Contrast checker → · Palette generator →