#4181E0#4181E0

#4181E0 is a mid, vivid blue. Relative luminance 0.222; OKLCH L 60.9% C 0.159 H 258.3°. Best body text is #000000 at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#4181E0
RGB	rgb(65, 129, 224)
HSL	hsl(216, 72%, 57%)
HSV	hsv(216, 71%, 88%)
CMYK	cmyk(71%, 42.4%, 0%, 12.2%)
CIE-LAB	lab(54.24, 10.96, -54.38)
CIE-LCH	lch(54.24, 55.47, 281.40°)
OKLab	oklab(60.87% -0.0322 -0.1554)
OKLCH	oklch(60.87% 0.159 258.3)
XYZ	xyz(23.4799, 22.2036, 73.5548)
Luminance	0.2221 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4181E0 #E0A041

analogous

#41D1E0 #4181E0 #5141E0

triadic

#4181E0 #E04181 #81E041

tetradic

#4181E0 #E041D1 #E0A041 #41E051

square

#4181E0 #E041D1 #E0A041 #41E051

split-complementary

#4181E0 #E05141 #D1E041

monochromatic

#17488F #2062C4 #4181E0 #76A4E9 #AAC7F1

Accessibility & contrast

On white

3.86

#4181E0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.44

#4181E0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4181E0

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4181E0	#FFFFFF	#000000	##000000
##4181E0	1.00	3.86	5.44	5.44
#FFFFFF	3.86	1.00	21.00	21.00
#000000	5.44	21.00	1.00	1.00
##000000	5.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#538AE4

Deuteranopia (green-blind)

#377BDE

Tritanopia (blue-blind)

#0097A5

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #4181e0;
/* rgb */ color: rgb(65, 129, 224);
/* oklch */ color: oklch(60.9% 0.159 258.3);

Tailwind

colors: {
  custom: {
    50: '#88a5ea',
    500: '#4181e0',
    950: '#000000',
  },
}

SCSS

$custom: #4181e0;
$custom-light: #88a5ea;
$custom-dark: #000000;

JSON

{
  "hex": "#4181e0",
  "rgb": {
    "r": 65,
    "g": 129,
    "b": 224
  },
  "hsl": {
    "h": 215.849,
    "s": 71.946,
    "l": 56.667
  },
  "oklch": {
    "l": 0.60871,
    "c": 0.15875,
    "h": 258.3
  },
  "luminance": 0.22206
}

Semantic roles & 50–950 ramp

primary

#4181E0

secondary

#DFC59E

accent

#A639EF

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4181E0

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

Preview Lab → · Contrast checker → · Palette generator →