#4178BA#4178BA

#4178BA is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.6% C 0.118 H 254.2°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#4178BA
RGB	rgb(65, 120, 186)
HSL	hsl(213, 48%, 49%)
HSV	hsv(213, 65%, 73%)
CMYK	cmyk(65.1%, 35.5%, 0%, 27.1%)
CIE-LAB	lab(49.62, 3.00, -40.13)
CIE-LCH	lch(49.62, 40.25, 274.27°)
OKLab	oklab(56.6% -0.0322 -0.1138)
OKLCH	oklch(56.6% 0.118 254.2)
XYZ	xyz(17.7562, 18.1002, 49.0028)
Luminance	0.1810 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4178BA #BA8341

analogous

#41B5BA #4178BA #4741BA

triadic

#4178BA #BA4178 #78BA41

tetradic

#4178BA #BA41B5 #BA8341 #41BA47

square

#4178BA #BA41B5 #BA8341 #41BA47

split-complementary

#4178BA #BA4741 #B5BA41

monochromatic

#213D5F #315B8D #4178BA #6C98CC #9AB8DC

Accessibility & contrast

On white

4.55

#4178BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#4178BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4178BA

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4178BA	#FFFFFF	#000000	##000000
##4178BA	1.00	4.55	4.62	4.62
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B7CBD

Deuteranopia (green-blind)

#4A71B9

Tritanopia (blue-blind)

#008790

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4178ba;
/* rgb */ color: rgb(65, 120, 186);
/* oklch */ color: oklch(56.6% 0.118 254.2);

Tailwind

colors: {
  custom: {
    50: '#819ecf',
    500: '#4178ba',
    950: '#000000',
  },
}

SCSS

$custom: #4178ba;
$custom-light: #819ecf;
$custom-dark: #000000;

JSON

{
  "hex": "#4178ba",
  "rgb": {
    "r": 65,
    "g": 120,
    "b": 186
  },
  "hsl": {
    "h": 212.727,
    "s": 48.207,
    "l": 49.216
  },
  "oklch": {
    "l": 0.56602,
    "c": 0.11829,
    "h": 254.2
  },
  "luminance": 0.18102
}

Semantic roles & 50–950 ramp

primary

#4178BA

secondary

#C8AE8F

accent

#9A50D8

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #4178BA

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

Preview Lab → · Contrast checker → · Palette generator →