#4083E3#4083E3

#4083E3 is a mid, vivid blue. Relative luminance 0.229; OKLCH L 61.5% C 0.161 H 257.8°. Best body text is #000000 at 5.57:1 contrast (WCAG AA passes).

Color values

HEX	#4083E3
RGB	rgb(64, 131, 227)
HSL	hsl(215, 74%, 57%)
HSV	hsv(215, 72%, 89%)
CMYK	cmyk(71.8%, 42.3%, 0%, 11%)
CIE-LAB	lab(54.93, 10.68, -54.96)
CIE-LCH	lch(54.93, 55.98, 280.99°)
OKLab	oklab(61.45% -0.0341 -0.1571)
OKLCH	oklch(61.45% 0.161 257.8)
XYZ	xyz(24.0907, 22.8660, 75.8021)
Luminance	0.2287 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4083E3 #E3A040

analogous

#40D5E3 #4083E3 #4E40E3

triadic

#4083E3 #E34083 #83E340

tetradic

#4083E3 #E340D5 #E3A040 #40E34E

square

#4083E3 #E340D5 #E3A040 #40E34E

split-complementary

#4083E3 #E34E40 #D5E340

monochromatic

#164993 #1D64C8 #4083E3 #75A6EB #ABC8F3

Accessibility & contrast

On white

3.77

#4083E3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.57

#4083E3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4083E3

5.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4083E3	#FFFFFF	#000000	##000000
##4083E3	1.00	3.77	5.57	5.57
#FFFFFF	3.77	1.00	21.00	21.00
#000000	5.57	21.00	1.00	1.00
##000000	5.57	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#548CE7

Deuteranopia (green-blind)

#387DE1

Tritanopia (blue-blind)

#0099A8

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #4083e3;
/* rgb */ color: rgb(64, 131, 227);
/* oklch */ color: oklch(61.5% 0.161 257.8);

Tailwind

colors: {
  custom: {
    50: '#88a6ec',
    500: '#4083e3',
    950: '#000000',
  },
}

SCSS

$custom: #4083e3;
$custom-light: #88a6ec;
$custom-dark: #000000;

JSON

{
  "hex": "#4083e3",
  "rgb": {
    "r": 64,
    "g": 131,
    "b": 227
  },
  "hsl": {
    "h": 215.337,
    "s": 74.429,
    "l": 57.059
  },
  "oklch": {
    "l": 0.61452,
    "c": 0.16079,
    "h": 257.8
  },
  "luminance": 0.22869
}

Semantic roles & 50–950 ramp

primary

#4083E3

secondary

#E1C59E

accent

#A437F1

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4083E3

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

Preview Lab → · Contrast checker → · Palette generator →