#4181DE#4181DE

#4181DE is a mid, vivid blue. Relative luminance 0.221; OKLCH L 60.7% C 0.156 H 257.9°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#4181DE
RGB	rgb(65, 129, 222)
HSL	hsl(216, 70%, 56%)
HSV	hsv(216, 71%, 87%)
CMYK	cmyk(70.7%, 41.9%, 0%, 12.9%)
CIE-LAB	lab(54.13, 10.25, -53.44)
CIE-LCH	lch(54.13, 54.41, 280.85°)
OKLab	oklab(60.75% -0.0326 -0.1527)
OKLCH	oklch(60.75% 0.156 257.9)
XYZ	xyz(23.2103, 22.0958, 72.1348)
Luminance	0.2210 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4181DE #DE9E41

analogous

#41D0DE #4181DE #5041DE

triadic

#4181DE #DE4181 #81DE41

tetradic

#4181DE #DE41D0 #DE9E41 #41DE50

square

#4181DE #DE41D0 #DE9E41 #41DE50

split-complementary

#4181DE #DE5041 #D0DE41

monochromatic

#18488C #2162C0 #4181DE #75A4E7 #A9C6F0

Accessibility & contrast

On white

3.87

#4181DE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#4181DE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4181DE

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4181DE	#FFFFFF	#000000	##000000
##4181DE	1.00	3.87	5.42	5.42
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5489E2

Deuteranopia (green-blind)

#3A7BDC

Tritanopia (blue-blind)

#0097A5

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #4181de;
/* rgb */ color: rgb(65, 129, 222);
/* oklch */ color: oklch(60.7% 0.156 257.9);

Tailwind

colors: {
  custom: {
    50: '#88a5e9',
    500: '#4181de',
    950: '#000000',
  },
}

SCSS

$custom: #4181de;
$custom-light: #88a5e9;
$custom-dark: #000000;

JSON

{
  "hex": "#4181de",
  "rgb": {
    "r": 65,
    "g": 129,
    "b": 222
  },
  "hsl": {
    "h": 215.541,
    "s": 70.404,
    "l": 56.275
  },
  "oklch": {
    "l": 0.60746,
    "c": 0.15614,
    "h": 257.9
  },
  "luminance": 0.22098
}

Semantic roles & 50–950 ramp

primary

#4181DE

secondary

#DEC39D

accent

#A43BED

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4181DE

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

Preview Lab → · Contrast checker → · Palette generator →