#4178A5#4178A5

#4178A5 is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.5% C 0.091 H 245.2°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#4178A5
RGB	rgb(65, 120, 165)
HSL	hsl(207, 43%, 45%)
HSV	hsv(207, 61%, 65%)
CMYK	cmyk(60.6%, 27.3%, 0%, 35.3%)
CIE-LAB	lab(48.60, -4.20, -29.55)
CIE-LCH	lch(48.60, 29.85, 261.92°)
OKLab	oklab(55.47% -0.0384 -0.0831)
OKLCH	oklch(55.47% 0.092 245.2)
XYZ	xyz(15.6855, 17.2719, 38.0972)
Luminance	0.1727 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4178A5 #A56E41

analogous

#41A5A0 #4178A5 #4146A5

triadic

#4178A5 #A54178 #78A541

tetradic

#4178A5 #A041A5 #A56E41 #46A541

square

#4178A5 #A041A5 #A56E41 #46A541

split-complementary

#4178A5 #A54146 #A5A041

monochromatic

#1E384D #305879 #4178A5 #6296C1 #8EB4D2

Accessibility & contrast

On white

4.71

#4178A5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#4178A5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4178A5

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4178A5	#FFFFFF	#000000	##FFFFFF
##4178A5	1.00	4.71	4.45	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6479A7

Deuteranopia (green-blind)

#576FA4

Tritanopia (blue-blind)

#008388

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4178a5;
/* rgb */ color: rgb(65, 120, 165);
/* oklch */ color: oklch(55.5% 0.091 245.2);

Tailwind

colors: {
  custom: {
    50: '#7e9ec0',
    500: '#4178a5',
    950: '#000000',
  },
}

SCSS

$custom: #4178a5;
$custom-light: #7e9ec0;
$custom-dark: #000000;

JSON

{
  "hex": "#4178a5",
  "rgb": {
    "r": 65,
    "g": 120,
    "b": 165
  },
  "hsl": {
    "h": 207,
    "s": 43.478,
    "l": 45.098
  },
  "oklch": {
    "l": 0.5547,
    "c": 0.0915,
    "h": 245.2
  },
  "luminance": 0.17273
}

Semantic roles & 50–950 ramp

primary

#4178A5

secondary

#BE9E84

accent

#8E55D3

background

#F8F9FB

surface

#EFF2F7

border

#CACCD0

text

#0B0E12

muted

#7C7E81

Preview Lab

Preview with #4178A5

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

Preview Lab → · Contrast checker → · Palette generator →