#177DA1#177DA1

#177DA1 is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.2% C 0.102 H 228.3°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#177DA1
RGB	rgb(23, 125, 161)
HSL	hsl(196, 75%, 36%)
HSV	hsv(196, 86%, 63%)
CMYK	cmyk(85.7%, 22.4%, 0%, 36.9%)
CIE-LAB	lab(48.79, -14.46, -27.02)
CIE-LCH	lch(48.79, 30.64, 241.85°)
OKLab	oklab(55.23% -0.0678 -0.0761)
OKLCH	oklch(55.23% 0.102 228.3)
XYZ	xyz(14.1173, 17.4208, 36.3298)
Luminance	0.1742 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#177DA1 #A13B17

analogous

#17A180 #177DA1 #1738A1

triadic

#177DA1 #A1177D #7DA117

tetradic

#177DA1 #8017A1 #A13B17 #38A117

square

#177DA1 #8017A1 #A13B17 #38A117

split-complementary

#177DA1 #A11738 #A18017

monochromatic

#082A36 #0F536B #177DA1 #1FA7D7 #4DBEE6

Accessibility & contrast

On white

4.68

#177DA1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#177DA1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #177DA1

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##177DA1	#FFFFFF	#000000	##FFFFFF
##177DA1	1.00	4.68	4.48	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7BA3

Deuteranopia (green-blind)

#586EA1

Tritanopia (blue-blind)

#008789

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #177da1;
/* rgb */ color: rgb(23, 125, 161);
/* oklch */ color: oklch(55.2% 0.102 228.3);

Tailwind

colors: {
  custom: {
    50: '#6fa2bd',
    500: '#177da1',
    950: '#000000',
  },
}

SCSS

$custom: #177da1;
$custom-light: #6fa2bd;
$custom-dark: #000000;

JSON

{
  "hex": "#177da1",
  "rgb": {
    "r": 23,
    "g": 125,
    "b": 161
  },
  "hsl": {
    "h": 195.652,
    "s": 75,
    "l": 36.078
  },
  "oklch": {
    "l": 0.55228,
    "c": 0.10191,
    "h": 228.3
  },
  "luminance": 0.17423
}

Semantic roles & 50–950 ramp

primary

#177DA1

secondary

#C76C4C

accent

#6736F2

background

#F7FAFB

surface

#EDF3F6

border

#C8CDD0

text

#090F12

muted

#7B7F81

Preview Lab

Preview with #177DA1

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

Preview Lab → · Contrast checker → · Palette generator →