#4378B9#4378B9

#4378B9 is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.6% C 0.116 H 254.6°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#4378B9
RGB	rgb(67, 120, 185)
HSL	hsl(213, 47%, 49%)
HSV	hsv(213, 64%, 73%)
CMYK	cmyk(63.8%, 35.1%, 0%, 27.5%)
CIE-LAB	lab(49.65, 3.01, -39.50)
CIE-LCH	lch(49.65, 39.61, 274.36°)
OKLab	oklab(56.63% -0.0309 -0.1119)
OKLCH	oklch(56.63% 0.116 254.6)
XYZ	xyz(17.7850, 18.1273, 48.4512)
Luminance	0.1813 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4378B9 #B98443

analogous

#43B3B9 #4378B9 #4943B9

triadic

#4378B9 #B94378 #78B943

tetradic

#4378B9 #B943B3 #B98443 #43B949

square

#4378B9 #B943B3 #B98443 #43B949

split-complementary

#4378B9 #B94943 #B3B943

monochromatic

#223E5F #335B8C #4378B9 #6F98CB #9BB8DB

Accessibility & contrast

On white

4.54

#4378B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#4378B9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4378B9

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4378B9	#FFFFFF	#000000	##000000
##4378B9	1.00	4.54	4.63	4.63
#FFFFFF	4.54	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)

#5C7CBC

Deuteranopia (green-blind)

#4C71B8

Tritanopia (blue-blind)

#008790

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #4378b9;
/* rgb */ color: rgb(67, 120, 185);
/* oklch */ color: oklch(56.6% 0.116 254.6);

Tailwind

colors: {
  custom: {
    50: '#829ece',
    500: '#4378b9',
    950: '#000000',
  },
}

SCSS

$custom: #4378b9;
$custom-light: #829ece;
$custom-dark: #000000;

JSON

{
  "hex": "#4378b9",
  "rgb": {
    "r": 67,
    "g": 120,
    "b": 185
  },
  "hsl": {
    "h": 213.051,
    "s": 46.825,
    "l": 49.412
  },
  "oklch": {
    "l": 0.56634,
    "c": 0.11613,
    "h": 254.6
  },
  "luminance": 0.18129
}

Semantic roles & 50–950 ramp

primary

#4378B9

secondary

#C7AF91

accent

#9B51D6

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #4378B9

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

Preview Lab → · Contrast checker → · Palette generator →