#4374B9#4374B9

#4374B9 is a mid, vivid blue. Relative luminance 0.172; OKLCH L 55.7% C 0.120 H 257.2°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#4374B9
RGB	rgb(67, 116, 185)
HSL	hsl(215, 47%, 49%)
HSV	hsv(215, 64%, 73%)
CMYK	cmyk(63.8%, 37.3%, 0%, 27.5%)
CIE-LAB	lab(48.49, 5.45, -41.33)
CIE-LCH	lch(48.49, 41.69, 277.51°)
OKLab	oklab(55.73% -0.0267 -0.1173)
OKLCH	oklch(55.73% 0.12 257.2)
XYZ	xyz(17.3140, 17.1852, 48.2942)
Luminance	0.1719 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4374B9 #B98843

analogous

#43AFB9 #4374B9 #4D43B9

triadic

#4374B9 #B94374 #74B943

tetradic

#4374B9 #B943AF #B98843 #43B94D

square

#4374B9 #B943AF #B98843 #43B94D

split-complementary

#4374B9 #B94D43 #AFB943

monochromatic

#223C5F #33588C #4374B9 #6F95CB #9BB6DB

Accessibility & contrast

On white

4.73

#4374B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#4374B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4374B9

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4374B9	#FFFFFF	#000000	##FFFFFF
##4374B9	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5679BC

Deuteranopia (green-blind)

#456EB8

Tritanopia (blue-blind)

#00848E

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4374b9;
/* rgb */ color: rgb(67, 116, 185);
/* oklch */ color: oklch(55.7% 0.120 257.2);

Tailwind

colors: {
  custom: {
    50: '#829bce',
    500: '#4374b9',
    950: '#000000',
  },
}

SCSS

$custom: #4374b9;
$custom-light: #829bce;
$custom-dark: #000000;

JSON

{
  "hex": "#4374b9",
  "rgb": {
    "r": 67,
    "g": 116,
    "b": 185
  },
  "hsl": {
    "h": 215.085,
    "s": 46.825,
    "l": 49.412
  },
  "oklch": {
    "l": 0.55731,
    "c": 0.12033,
    "h": 257.2
  },
  "luminance": 0.17187
}

Semantic roles & 50–950 ramp

primary

#4374B9

secondary

#C7B191

accent

#9F51D6

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #4374B9

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

Preview Lab → · Contrast checker → · Palette generator →