#4377D9#4377D9

#4377D9 is a mid, vivid blue. Relative luminance 0.194; OKLCH L 58.4% C 0.160 H 261.7°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#4377D9
RGB	rgb(67, 119, 217)
HSL	hsl(219, 66%, 56%)
HSV	hsv(219, 69%, 85%)
CMYK	cmyk(69.1%, 45.2%, 0%, 14.9%)
CIE-LAB	lab(51.15, 14.91, -55.39)
CIE-LCH	lch(51.15, 57.36, 285.06°)
OKLab	oklab(58.37% -0.023 -0.1586)
OKLCH	oklch(58.37% 0.16 261.7)
XYZ	xyz(21.4315, 19.3945, 68.2462)
Luminance	0.1940 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4377D9 #D9A543

analogous

#43C2D9 #4377D9 #5A43D9

triadic

#4377D9 #D94377 #77D943

tetradic

#4377D9 #D943C2 #D9A543 #43D95A

square

#4377D9 #D943C2 #D9A543 #43D95A

split-complementary

#4377D9 #D95A43 #C2D943

monochromatic

#1B4086 #2559B9 #4377D9 #769CE3 #A9C1EE

Accessibility & contrast

On white

4.30

#4377D9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#4377D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4377D9

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4377D9	#FFFFFF	#000000	##000000
##4377D9	1.00	4.30	4.88	4.88
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4681DD

Deuteranopia (green-blind)

#2873D7

Tritanopia (blue-blind)

#008E9D

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #4377d9;
/* rgb */ color: rgb(67, 119, 217);
/* oklch */ color: oklch(58.4% 0.160 261.7);

Tailwind

colors: {
  custom: {
    50: '#889de5',
    500: '#4377d9',
    950: '#000000',
  },
}

SCSS

$custom: #4377d9;
$custom-light: #889de5;
$custom-dark: #000000;

JSON

{
  "hex": "#4377d9",
  "rgb": {
    "r": 67,
    "g": 119,
    "b": 217
  },
  "hsl": {
    "h": 219.2,
    "s": 66.372,
    "l": 55.686
  },
  "oklch": {
    "l": 0.5837,
    "c": 0.16023,
    "h": 261.7
  },
  "luminance": 0.19397
}

Semantic roles & 50–950 ramp

primary

#4377D9

secondary

#DBC59D

accent

#AE3FE9

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4377D9

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

Preview Lab → · Contrast checker → · Palette generator →