#177EA1#177EA1

#177EA1 is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.5% C 0.102 H 227.3°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#177EA1
RGB	rgb(23, 126, 161)
HSL	hsl(195, 75%, 36%)
HSV	hsv(195, 86%, 63%)
CMYK	cmyk(85.7%, 21.7%, 0%, 36.9%)
CIE-LAB	lab(49.10, -15.02, -26.53)
CIE-LCH	lch(49.10, 30.49, 240.49°)
OKLab	oklab(55.48% -0.0688 -0.0746)
OKLCH	oklch(55.48% 0.102 227.3)
XYZ	xyz(14.2445, 17.6753, 36.3722)
Luminance	0.1768 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#177EA1 #A13A17

analogous

#17A17F #177EA1 #1739A1

triadic

#177EA1 #A1177E #7EA117

tetradic

#177EA1 #7F17A1 #A13A17 #39A117

square

#177EA1 #7F17A1 #A13A17 #39A117

split-complementary

#177EA1 #A11739 #A17F17

monochromatic

#082A36 #0F546B #177EA1 #1FA8D7 #4DBFE6

Accessibility & contrast

On white

4.63

#177EA1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#177EA1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #177EA1

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##177EA1	#FFFFFF	#000000	##FFFFFF
##177EA1	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7CA3

Deuteranopia (green-blind)

#5A6FA1

Tritanopia (blue-blind)

#00888A

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #177ea1;
/* rgb */ color: rgb(23, 126, 161);
/* oklch */ color: oklch(55.5% 0.102 227.3);

Tailwind

colors: {
  custom: {
    50: '#6fa3bd',
    500: '#177ea1',
    950: '#000000',
  },
}

SCSS

$custom: #177ea1;
$custom-light: #6fa3bd;
$custom-dark: #000000;

JSON

{
  "hex": "#177ea1",
  "rgb": {
    "r": 23,
    "g": 126,
    "b": 161
  },
  "hsl": {
    "h": 195.217,
    "s": 75,
    "l": 36.078
  },
  "oklch": {
    "l": 0.55479,
    "c": 0.10151,
    "h": 227.3
  },
  "luminance": 0.17677
}

Semantic roles & 50–950 ramp

primary

#177EA1

secondary

#C76C4C

accent

#6636F2

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #177EA1

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

Preview Lab → · Contrast checker → · Palette generator →