#3177BC#3177BC

#3177BC is a mid, vivid cyan. Relative luminance 0.175; OKLCH L 55.9% C 0.128 H 251.0°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#3177BC
RGB	rgb(49, 119, 188)
HSL	hsl(210, 59%, 46%)
HSV	hsv(210, 74%, 74%)
CMYK	cmyk(73.9%, 36.7%, 0%, 26.3%)
CIE-LAB	lab(48.85, 1.82, -42.53)
CIE-LCH	lch(48.85, 42.57, 272.45°)
OKLab	oklab(55.88% -0.0417 -0.1211)
OKLCH	oklch(55.88% 0.128 251)
XYZ	xyz(16.9371, 17.4755, 50.0477)
Luminance	0.1748 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3177BC #BC7631

analogous

#31BCBC #3177BC #3132BC

triadic

#3177BC #BC3177 #77BC31

tetradic

#3177BC #BC31BC #BC7631 #32BC31

square

#3177BC #BC31BC #BC7631 #32BC31

split-complementary

#3177BC #BC3132 #BCBC31

monochromatic

#183A5B #24588B #3177BC #5796D3 #88B4E0

Accessibility & contrast

On white

4.67

#3177BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#3177BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3177BC

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3177BC	#FFFFFF	#000000	##FFFFFF
##3177BC	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#577BBF

Deuteranopia (green-blind)

#436EBB

Tritanopia (blue-blind)

#008790

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3177bc;
/* rgb */ color: rgb(49, 119, 188);
/* oklch */ color: oklch(55.9% 0.128 251.0);

Tailwind

colors: {
  custom: {
    50: '#7b9dd0',
    500: '#3177bc',
    950: '#000000',
  },
}

SCSS

$custom: #3177bc;
$custom-light: #7b9dd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3177bc",
  "rgb": {
    "r": 49,
    "g": 119,
    "b": 188
  },
  "hsl": {
    "h": 209.784,
    "s": 58.65,
    "l": 46.471
  },
  "oklch": {
    "l": 0.55878,
    "c": 0.12806,
    "h": 251
  },
  "luminance": 0.17477
}

Semantic roles & 50–950 ramp

primary

#3177BC

secondary

#CAA47F

accent

#9346E2

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3177BC

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

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