#4181DF#4181DF

#4181DF is a mid, vivid blue. Relative luminance 0.222; OKLCH L 60.8% C 0.157 H 258.1°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#4181DF
RGB	rgb(65, 129, 223)
HSL	hsl(216, 71%, 56%)
HSV	hsv(216, 71%, 87%)
CMYK	cmyk(70.9%, 42.2%, 0%, 12.5%)
CIE-LAB	lab(54.19, 10.60, -53.91)
CIE-LCH	lch(54.19, 54.94, 281.13°)
OKLab	oklab(60.81% -0.0324 -0.1541)
OKLCH	oklch(60.81% 0.157 258.1)
XYZ	xyz(23.3447, 22.1495, 72.8427)
Luminance	0.2215 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4181DF #DF9F41

analogous

#41D0DF #4181DF #5041DF

triadic

#4181DF #DF4181 #81DF41

tetradic

#4181DF #DF41D0 #DF9F41 #41DF50

square

#4181DF #DF41D0 #DF9F41 #41DF50

split-complementary

#4181DF #DF5041 #D0DF41

monochromatic

#18488E #2162C2 #4181DF #75A4E8 #AAC6F1

Accessibility & contrast

On white

3.87

#4181DF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#4181DF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4181DF

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4181DF	#FFFFFF	#000000	##000000
##4181DF	1.00	3.87	5.43	5.43
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.43	21.00	1.00	1.00
##000000	5.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5489E3

Deuteranopia (green-blind)

#387BDD

Tritanopia (blue-blind)

#0097A5

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #4181df;
/* rgb */ color: rgb(65, 129, 223);
/* oklch */ color: oklch(60.8% 0.157 258.1);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#4181df",
  "rgb": {
    "r": 65,
    "g": 129,
    "b": 223
  },
  "hsl": {
    "h": 215.696,
    "s": 71.171,
    "l": 56.471
  },
  "oklch": {
    "l": 0.60808,
    "c": 0.15744,
    "h": 258.1
  },
  "luminance": 0.22152
}

Semantic roles & 50–950 ramp

primary

#4181DF

secondary

#DEC49D

accent

#A53AEE

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4181DF

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

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