#4178AC#4178AC

#4178AC is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.8% C 0.100 H 248.8°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#4178AC
RGB	rgb(65, 120, 172)
HSL	hsl(209, 45%, 46%)
HSV	hsv(209, 62%, 67%)
CMYK	cmyk(62.2%, 30.2%, 0%, 32.5%)
CIE-LAB	lab(48.93, -1.83, -33.12)
CIE-LCH	lch(48.93, 33.17, 266.83°)
OKLab	oklab(55.83% -0.0362 -0.0934)
OKLCH	oklch(55.83% 0.1 248.8)
XYZ	xyz(16.3401, 17.5338, 41.5450)
Luminance	0.1754 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4178AC #AC7541

analogous

#41ACAB #4178AC #4143AC

triadic

#4178AC #AC4178 #78AC41

tetradic

#4178AC #AB41AC #AC7541 #43AC41

square

#4178AC #AB41AC #AC7541 #43AC41

split-complementary

#4178AC #AC4143 #ACAB41

monochromatic

#1F3A53 #305980 #4178AC #6596C5 #92B5D6

Accessibility & contrast

On white

4.66

#4178AC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#4178AC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4178AC

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4178AC	#FFFFFF	#000000	##FFFFFF
##4178AC	1.00	4.66	4.51	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#627AAE

Deuteranopia (green-blind)

#5370AB

Tritanopia (blue-blind)

#00848A

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4178ac;
/* rgb */ color: rgb(65, 120, 172);
/* oklch */ color: oklch(55.8% 0.100 248.8);

Tailwind

colors: {
  custom: {
    50: '#7f9ec5',
    500: '#4178ac',
    950: '#000000',
  },
}

SCSS

$custom: #4178ac;
$custom-light: #7f9ec5;
$custom-dark: #000000;

JSON

{
  "hex": "#4178ac",
  "rgb": {
    "r": 65,
    "g": 120,
    "b": 172
  },
  "hsl": {
    "h": 209.159,
    "s": 45.148,
    "l": 46.471
  },
  "oklch": {
    "l": 0.55833,
    "c": 0.10016,
    "h": 248.8
  },
  "luminance": 0.17535
}

Semantic roles & 50–950 ramp

primary

#4178AC

secondary

#C1A488

accent

#9253D5

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #4178AC

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

Preview Lab → · Contrast checker → · Palette generator →