#4374BB#4374BB

#4374BB is a mid, vivid blue. Relative luminance 0.173; OKLCH L 55.8% C 0.123 H 257.7°. Best body text is #FFFFFF at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#4374BB
RGB	rgb(67, 116, 187)
HSL	hsl(216, 47%, 50%)
HSV	hsv(216, 64%, 73%)
CMYK	cmyk(64.2%, 38%, 0%, 26.7%)
CIE-LAB	lab(48.60, 6.15, -42.32)
CIE-LCH	lch(48.60, 42.76, 278.27°)
OKLab	oklab(55.85% -0.0262 -0.1202)
OKLCH	oklch(55.85% 0.123 257.7)
XYZ	xyz(17.5266, 17.2703, 49.4139)
Luminance	0.1727 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4374BB #BB8A43

analogous

#43B0BB #4374BB #4E43BB

triadic

#4374BB #BB4374 #74BB43

tetradic

#4374BB #BB43B0 #BB8A43 #43BB4E

square

#4374BB #BB43B0 #BB8A43 #43BB4E

split-complementary

#4374BB #BB4E43 #B0BB43

monochromatic

#233C61 #33588E #4374BB #7095CC #9DB6DC

Accessibility & contrast

On white

4.71

#4374BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#4374BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4374BB

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4374BB	#FFFFFF	#000000	##FFFFFF
##4374BB	1.00	4.71	4.45	4.71
#FFFFFF	4.71	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#557ABE

Deuteranopia (green-blind)

#446EBA

Tritanopia (blue-blind)

#00848E

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4374bb;
/* rgb */ color: rgb(67, 116, 187);
/* oklch */ color: oklch(55.8% 0.123 257.7);

Tailwind

colors: {
  custom: {
    50: '#839bd0',
    500: '#4374bb',
    950: '#000000',
  },
}

SCSS

$custom: #4374bb;
$custom-light: #839bd0;
$custom-dark: #000000;

JSON

{
  "hex": "#4374bb",
  "rgb": {
    "r": 67,
    "g": 116,
    "b": 187
  },
  "hsl": {
    "h": 215.5,
    "s": 47.244,
    "l": 49.804
  },
  "oklch": {
    "l": 0.55848,
    "c": 0.12305,
    "h": 257.7
  },
  "luminance": 0.17272
}

Semantic roles & 50–950 ramp

primary

#4374BB

secondary

#C8B292

accent

#A051D7

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4374BB

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

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