#4378BA#4378BA

#4378BA is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.7% C 0.117 H 254.9°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#4378BA
RGB	rgb(67, 120, 186)
HSL	hsl(213, 47%, 50%)
HSV	hsv(213, 64%, 73%)
CMYK	cmyk(64%, 35.5%, 0%, 27.1%)
CIE-LAB	lab(49.70, 3.36, -40.00)
CIE-LCH	lch(49.70, 40.14, 274.80°)
OKLab	oklab(56.69% -0.0306 -0.1134)
OKLCH	oklch(56.69% 0.117 254.9)
XYZ	xyz(17.8909, 18.1697, 49.0091)
Luminance	0.1817 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4378BA #BA8543

analogous

#43B4BA #4378BA #4943BA

triadic

#4378BA #BA4378 #78BA43

tetradic

#4378BA #BA43B4 #BA8543 #43BA49

square

#4378BA #BA43B4 #BA8543 #43BA49

split-complementary

#4378BA #BA4943 #B4BA43

monochromatic

#233E60 #335B8D #4378BA #6F98CB #9CB8DB

Accessibility & contrast

On white

4.53

#4378BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#4378BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4378BA

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4378BA	#FFFFFF	#000000	##000000
##4378BA	1.00	4.53	4.63	4.63
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B7CBD

Deuteranopia (green-blind)

#4B71B9

Tritanopia (blue-blind)

#008790

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4378ba;
/* rgb */ color: rgb(67, 120, 186);
/* oklch */ color: oklch(56.7% 0.117 254.9);

Tailwind

colors: {
  custom: {
    50: '#829ecf',
    500: '#4378ba',
    950: '#000000',
  },
}

SCSS

$custom: #4378ba;
$custom-light: #829ecf;
$custom-dark: #000000;

JSON

{
  "hex": "#4378ba",
  "rgb": {
    "r": 67,
    "g": 120,
    "b": 186
  },
  "hsl": {
    "h": 213.277,
    "s": 47.036,
    "l": 49.608
  },
  "oklch": {
    "l": 0.56691,
    "c": 0.11745,
    "h": 254.9
  },
  "luminance": 0.18171
}

Semantic roles & 50–950 ramp

primary

#4378BA

secondary

#C8AF91

accent

#9B51D7

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #4378BA

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

Preview Lab → · Contrast checker → · Palette generator →