#4178AA#4178AA

#4178AA is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.7% C 0.098 H 247.9°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#4178AA
RGB	rgb(65, 120, 170)
HSL	hsl(209, 45%, 46%)
HSV	hsv(209, 62%, 67%)
CMYK	cmyk(61.8%, 29.4%, 0%, 33.3%)
CIE-LAB	lab(48.83, -2.51, -32.10)
CIE-LCH	lch(48.83, 32.20, 265.53°)
OKLab	oklab(55.73% -0.0368 -0.0904)
OKLCH	oklch(55.73% 0.098 247.9)
XYZ	xyz(16.1495, 17.4575, 40.5410)
Luminance	0.1746 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4178AA #AA7341

analogous

#41AAA7 #4178AA #4143AA

triadic

#4178AA #AA4178 #78AA41

tetradic

#4178AA #A741AA #AA7341 #43AA41

square

#4178AA #A741AA #AA7341 #43AA41

split-complementary

#4178AA #AA4143 #AAA741

monochromatic

#1F3951 #30597E #4178AA #6496C4 #91B4D5

Accessibility & contrast

On white

4.68

#4178AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#4178AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4178AA

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4178AA	#FFFFFF	#000000	##FFFFFF
##4178AA	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#627AAC

Deuteranopia (green-blind)

#546FA9

Tritanopia (blue-blind)

#00848A

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4178aa;
/* rgb */ color: rgb(65, 120, 170);
/* oklch */ color: oklch(55.7% 0.098 247.9);

Tailwind

colors: {
  custom: {
    50: '#7f9ec3',
    500: '#4178aa',
    950: '#000000',
  },
}

SCSS

$custom: #4178aa;
$custom-light: #7f9ec3;
$custom-dark: #000000;

JSON

{
  "hex": "#4178aa",
  "rgb": {
    "r": 65,
    "g": 120,
    "b": 170
  },
  "hsl": {
    "h": 208.571,
    "s": 44.681,
    "l": 46.078
  },
  "oklch": {
    "l": 0.55728,
    "c": 0.09764,
    "h": 247.9
  },
  "luminance": 0.17459
}

Semantic roles & 50–950 ramp

primary

#4178AA

secondary

#C0A287

accent

#9153D4

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E12

muted

#7C7E81

Preview Lab

Preview with #4178AA

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

Preview Lab → · Contrast checker → · Palette generator →