#3177B3#3177B3

#3177B3 is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.4% C 0.117 H 247.7°. Best body text is #FFFFFF at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#3177B3
RGB	rgb(49, 119, 179)
HSL	hsl(208, 57%, 45%)
HSV	hsv(208, 73%, 70%)
CMYK	cmyk(72.6%, 33.5%, 0%, 29.8%)
CIE-LAB	lab(48.39, -1.46, -38.07)
CIE-LCH	lch(48.39, 38.10, 267.80°)
OKLab	oklab(55.36% -0.0442 -0.108)
OKLCH	oklch(55.36% 0.117 247.7)
XYZ	xyz(15.9970, 17.0995, 45.0965)
Luminance	0.1710 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3177B3 #B36D31

analogous

#31B3AE #3177B3 #3136B3

triadic

#3177B3 #B33177 #77B331

tetradic

#3177B3 #AE31B3 #B36D31 #36B331

square

#3177B3 #AE31B3 #B36D31 #36B331

split-complementary

#3177B3 #B33136 #B3AE31

monochromatic

#173753 #245783 #3177B3 #5295D0 #82B3DD

Accessibility & contrast

On white

4.75

#3177B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#3177B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3177B3

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3177B3	#FFFFFF	#000000	##FFFFFF
##3177B3	1.00	4.75	4.42	4.75
#FFFFFF	4.75	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C7AB6

Deuteranopia (green-blind)

#496DB2

Tritanopia (blue-blind)

#00858D

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3177b3;
/* rgb */ color: rgb(49, 119, 179);
/* oklch */ color: oklch(55.4% 0.117 247.7);

Tailwind

colors: {
  custom: {
    50: '#7a9dca',
    500: '#3177b3',
    950: '#000000',
  },
}

SCSS

$custom: #3177b3;
$custom-light: #7a9dca;
$custom-dark: #000000;

JSON

{
  "hex": "#3177b3",
  "rgb": {
    "r": 49,
    "g": 119,
    "b": 179
  },
  "hsl": {
    "h": 207.692,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.55357,
    "c": 0.11672,
    "h": 247.7
  },
  "luminance": 0.17101
}

Semantic roles & 50–950 ramp

primary

#3177B3

secondary

#C69D7A

accent

#8E48E0

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3177B3

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

Preview Lab → · Contrast checker → · Palette generator →