#4180D9#4180D9

#4180D9 is a mid, vivid blue. Relative luminance 0.216; OKLCH L 60.2% C 0.151 H 257.5°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#4180D9
RGB	rgb(65, 128, 217)
HSL	hsl(215, 67%, 55%)
HSV	hsv(215, 70%, 85%)
CMYK	cmyk(70%, 41%, 0%, 14.9%)
CIE-LAB	lab(53.57, 9.07, -51.52)
CIE-LCH	lch(53.57, 52.32, 279.99°)
OKLab	oklab(60.22% -0.0327 -0.1471)
OKLCH	oklch(60.22% 0.151 257.5)
XYZ	xyz(22.4190, 21.5695, 68.6140)
Luminance	0.2157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4180D9 #D99A41

analogous

#41CCD9 #4180D9 #4E41D9

triadic

#4180D9 #D94180 #80D941

tetradic

#4180D9 #D941CC #D99A41 #41D94E

square

#4180D9 #D941CC #D99A41 #41D94E

split-complementary

#4180D9 #D94E41 #CCD941

monochromatic

#1B4785 #2562B8 #4180D9 #74A2E3 #A7C4ED

Accessibility & contrast

On white

3.95

#4180D9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#4180D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4180D9

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4180D9	#FFFFFF	#000000	##000000
##4180D9	1.00	3.95	5.31	5.31
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5688DC

Deuteranopia (green-blind)

#3D79D7

Tritanopia (blue-blind)

#0095A2

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #4180d9;
/* rgb */ color: rgb(65, 128, 217);
/* oklch */ color: oklch(60.2% 0.151 257.5);

Tailwind

colors: {
  custom: {
    50: '#87a4e5',
    500: '#4180d9',
    950: '#000000',
  },
}

SCSS

$custom: #4180d9;
$custom-light: #87a4e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4180d9",
  "rgb": {
    "r": 65,
    "g": 128,
    "b": 217
  },
  "hsl": {
    "h": 215.132,
    "s": 66.667,
    "l": 55.294
  },
  "oklch": {
    "l": 0.6022,
    "c": 0.15068,
    "h": 257.5
  },
  "luminance": 0.21572
}

Semantic roles & 50–950 ramp

primary

#4180D9

secondary

#DBC09B

accent

#A33EEA

background

#F8FAFE

surface

#F0F3FC

border

#CBCDD5

text

#0D0F16

muted

#7D7F84

Preview Lab

Preview with #4180D9

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

Preview Lab → · Contrast checker → · Palette generator →