#4178AB#4178AB

#4178AB is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.8% C 0.099 H 248.4°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#4178AB
RGB	rgb(65, 120, 171)
HSL	hsl(209, 45%, 46%)
HSV	hsv(209, 62%, 67%)
CMYK	cmyk(62%, 29.8%, 0%, 32.9%)
CIE-LAB	lab(48.88, -2.17, -32.61)
CIE-LCH	lch(48.88, 32.68, 266.19°)
OKLab	oklab(55.78% -0.0365 -0.0919)
OKLCH	oklch(55.78% 0.099 248.4)
XYZ	xyz(16.2444, 17.4955, 41.0411)
Luminance	0.1750 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4178AB #AB7441

analogous

#41ABA9 #4178AB #4143AB

triadic

#4178AB #AB4178 #78AB41

tetradic

#4178AB #A941AB #AB7441 #43AB41

square

#4178AB #A941AB #AB7441 #43AB41

split-complementary

#4178AB #AB4143 #ABA941

monochromatic

#1F3A52 #30597F #4178AB #6596C4 #91B4D5

Accessibility & contrast

On white

4.67

#4178AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#4178AB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4178AB

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4178AB	#FFFFFF	#000000	##FFFFFF
##4178AB	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#627AAD

Deuteranopia (green-blind)

#546FAA

Tritanopia (blue-blind)

#00848A

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4178ab;
/* rgb */ color: rgb(65, 120, 171);
/* oklch */ color: oklch(55.8% 0.099 248.4);

Tailwind

colors: {
  custom: {
    50: '#7f9ec4',
    500: '#4178ab',
    950: '#000000',
  },
}

SCSS

$custom: #4178ab;
$custom-light: #7f9ec4;
$custom-dark: #000000;

JSON

{
  "hex": "#4178ab",
  "rgb": {
    "r": 65,
    "g": 120,
    "b": 171
  },
  "hsl": {
    "h": 208.868,
    "s": 44.915,
    "l": 46.275
  },
  "oklch": {
    "l": 0.5578,
    "c": 0.09889,
    "h": 248.4
  },
  "luminance": 0.17497
}

Semantic roles & 50–950 ramp

primary

#4178AB

secondary

#C1A387

accent

#9153D5

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E12

muted

#7C7E81

Preview Lab

Preview with #4178AB

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

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