#4073C8#4073C8

#4073C8 is a mid, vivid blue. Relative luminance 0.175; OKLCH L 56.3% C 0.143 H 260.0°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#4073C8
RGB	rgb(64, 115, 200)
HSL	hsl(218, 55%, 52%)
HSV	hsv(218, 68%, 78%)
CMYK	cmyk(68%, 42.5%, 0%, 21.6%)
CIE-LAB	lab(48.91, 10.86, -49.31)
CIE-LCH	lch(48.91, 50.49, 282.42°)
OKLab	oklab(56.29% -0.0247 -0.1408)
OKLCH	oklch(56.29% 0.143 260)
XYZ	xyz(18.6667, 17.5197, 57.0303)
Luminance	0.1752 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4073C8 #C89540

analogous

#40B7C8 #4073C8 #5140C8

triadic

#4073C8 #C84073 #73C840

tetradic

#4073C8 #C840B7 #C89540 #40C851

square

#4073C8 #C840B7 #C89540 #40C851

split-complementary

#4073C8 #C85140 #B7C840

monochromatic

#203D6E #2D579D #4073C8 #7096D6 #9FB9E3

Accessibility & contrast

On white

4.66

#4073C8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#4073C8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #4073C8

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4073C8	#FFFFFF	#000000	##FFFFFF
##4073C8	1.00	4.66	4.50	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B7BCB

Deuteranopia (green-blind)

#346EC6

Tritanopia (blue-blind)

#008794

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #4073c8;
/* rgb */ color: rgb(64, 115, 200);
/* oklch */ color: oklch(56.3% 0.143 260.0);

Tailwind

colors: {
  custom: {
    50: '#839ad9',
    500: '#4073c8',
    950: '#000000',
  },
}

SCSS

$custom: #4073c8;
$custom-light: #839ad9;
$custom-dark: #000000;

JSON

{
  "hex": "#4073c8",
  "rgb": {
    "r": 64,
    "g": 115,
    "b": 200
  },
  "hsl": {
    "h": 217.5,
    "s": 55.285,
    "l": 51.765
  },
  "oklch": {
    "l": 0.56288,
    "c": 0.14294,
    "h": 260
  },
  "luminance": 0.17522
}

Semantic roles & 50–950 ramp

primary

#4073C8

secondary

#D0B994

accent

#A749DF

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4073C8

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

Preview Lab → · Contrast checker → · Palette generator →