#4178A3#4178A3

#4178A3 is a mid, moderate cyan. Relative luminance 0.172; OKLCH L 55.4% C 0.089 H 244.0°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#4178A3
RGB	rgb(65, 120, 163)
HSL	hsl(206, 43%, 45%)
HSV	hsv(206, 60%, 64%)
CMYK	cmyk(60.1%, 26.4%, 0%, 36.1%)
CIE-LAB	lab(48.51, -4.86, -28.52)
CIE-LCH	lch(48.51, 28.93, 260.32°)
OKLab	oklab(55.37% -0.039 -0.0801)
OKLCH	oklch(55.37% 0.089 244)
XYZ	xyz(15.5049, 17.1997, 37.1460)
Luminance	0.1720 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4178A3 #A36C41

analogous

#41A39D #4178A3 #4147A3

triadic

#4178A3 #A34178 #78A341

tetradic

#4178A3 #9D41A3 #A36C41 #47A341

square

#4178A3 #9D41A3 #A36C41 #47A341

split-complementary

#4178A3 #A34147 #A39D41

monochromatic

#1E384B #305877 #4178A3 #6196C0 #8DB3D1

Accessibility & contrast

On white

4.73

#4178A3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#4178A3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4178A3

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4178A3	#FFFFFF	#000000	##FFFFFF
##4178A3	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6579A5

Deuteranopia (green-blind)

#586FA2

Tritanopia (blue-blind)

#008287

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4178a3;
/* rgb */ color: rgb(65, 120, 163);
/* oklch */ color: oklch(55.4% 0.089 244.0);

Tailwind

colors: {
  custom: {
    50: '#7e9ebe',
    500: '#4178a3',
    950: '#000000',
  },
}

SCSS

$custom: #4178a3;
$custom-light: #7e9ebe;
$custom-dark: #000000;

JSON

{
  "hex": "#4178a3",
  "rgb": {
    "r": 65,
    "g": 120,
    "b": 163
  },
  "hsl": {
    "h": 206.327,
    "s": 42.982,
    "l": 44.706
  },
  "oklch": {
    "l": 0.55369,
    "c": 0.0891,
    "h": 244
  },
  "luminance": 0.17201
}

Semantic roles & 50–950 ramp

primary

#4178A3

secondary

#BD9C83

accent

#8C55D3

background

#F8F9FB

surface

#EFF2F7

border

#CACCD0

text

#0B0E12

muted

#7C7E81

Preview Lab

Preview with #4178A3

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

Preview Lab → · Contrast checker → · Palette generator →