#4370B2#4370B2

#4370B2 is a mid, moderate blue. Relative luminance 0.160; OKLCH L 54.4% C 0.115 H 257.9°. Best body text is #FFFFFF at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#4370B2
RGB	rgb(67, 112, 178)
HSL	hsl(216, 45%, 48%)
HSV	hsv(216, 62%, 70%)
CMYK	cmyk(62.4%, 37.1%, 0%, 30.2%)
CIE-LAB	lab(46.97, 5.48, -39.69)
CIE-LCH	lch(46.97, 40.06, 277.86°)
OKLab	oklab(54.42% -0.0241 -0.1126)
OKLCH	oklch(54.42% 0.115 257.9)
XYZ	xyz(16.1419, 15.9945, 44.3474)
Luminance	0.1600 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4370B2 #B28543

analogous

#43A7B2 #4370B2 #4E43B2

triadic

#4370B2 #B24370 #70B243

tetradic

#4370B2 #B243A7 #B28543 #43B24E

square

#4370B2 #B243A7 #B28543 #43B24E

split-complementary

#4370B2 #B24E43 #A7B243

monochromatic

#223859 #325486 #4370B2 #6B90C7 #97B2D8

Accessibility & contrast

On white

5.00

#4370B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.20

#4370B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4370B2

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4370B2	#FFFFFF	#000000	##FFFFFF
##4370B2	1.00	5.00	4.20	5.00
#FFFFFF	5.00	1.00	21.00	1.00
#000000	4.20	21.00	1.00	21.00
##FFFFFF	5.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5475B5

Deuteranopia (green-blind)

#446BB1

Tritanopia (blue-blind)

#007F88

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #4370b2;
/* rgb */ color: rgb(67, 112, 178);
/* oklch */ color: oklch(54.4% 0.115 257.9);

Tailwind

colors: {
  custom: {
    50: '#8198c9',
    500: '#4370b2',
    950: '#000000',
  },
}

SCSS

$custom: #4370b2;
$custom-light: #8198c9;
$custom-dark: #000000;

JSON

{
  "hex": "#4370b2",
  "rgb": {
    "r": 67,
    "g": 112,
    "b": 178
  },
  "hsl": {
    "h": 215.676,
    "s": 45.306,
    "l": 48.039
  },
  "oklch": {
    "l": 0.54423,
    "c": 0.11513,
    "h": 257.9
  },
  "luminance": 0.15996
}

Semantic roles & 50–950 ramp

primary

#4370B2

secondary

#C4AE8D

accent

#A053D5

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #4370B2

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

Preview Lab → · Contrast checker → · Palette generator →