#4375BC#4375BC

#4375BC is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.1% C 0.123 H 257.4°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#4375BC
RGB	rgb(67, 117, 188)
HSL	hsl(215, 47%, 50%)
HSV	hsv(215, 64%, 74%)
CMYK	cmyk(64.4%, 37.8%, 0%, 26.3%)
CIE-LAB	lab(48.94, 5.88, -42.35)
CIE-LCH	lch(48.94, 42.76, 277.91°)
OKLab	oklab(56.13% -0.027 -0.1203)
OKLCH	oklch(56.13% 0.123 257.4)
XYZ	xyz(17.7499, 17.5450, 50.0183)
Luminance	0.1755 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4375BC #BC8A43

analogous

#43B1BC #4375BC #4E43BC

triadic

#4375BC #BC4375 #75BC43

tetradic

#4375BC #BC43B1 #BC8A43 #43BC4E

square

#4375BC #BC43B1 #BC8A43 #43BC4E

split-complementary

#4375BC #BC4E43 #B1BC43

monochromatic

#233D62 #33598F #4375BC #7096CC #9DB7DC

Accessibility & contrast

On white

4.66

#4375BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#4375BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4375BC

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4375BC	#FFFFFF	#000000	##FFFFFF
##4375BC	1.00	4.66	4.51	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#567ABF

Deuteranopia (green-blind)

#456FBB

Tritanopia (blue-blind)

#00858F

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4375bc;
/* rgb */ color: rgb(67, 117, 188);
/* oklch */ color: oklch(56.1% 0.123 257.4);

Tailwind

colors: {
  custom: {
    50: '#839cd0',
    500: '#4375bc',
    950: '#000000',
  },
}

SCSS

$custom: #4375bc;
$custom-light: #839cd0;
$custom-dark: #000000;

JSON

{
  "hex": "#4375bc",
  "rgb": {
    "r": 67,
    "g": 117,
    "b": 188
  },
  "hsl": {
    "h": 215.207,
    "s": 47.451,
    "l": 50
  },
  "oklch": {
    "l": 0.56131,
    "c": 0.12331,
    "h": 257.4
  },
  "luminance": 0.17547
}

Semantic roles & 50–950 ramp

primary

#4375BC

secondary

#C9B292

accent

#A051D7

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #4375BC

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

Preview Lab → · Contrast checker → · Palette generator →