#4181D8#4181D8

#4181D8 is a mid, vivid cyan. Relative luminance 0.218; OKLCH L 60.4% C 0.148 H 256.8°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#4181D8
RGB	rgb(65, 129, 216)
HSL	hsl(215, 66%, 55%)
HSV	hsv(215, 70%, 85%)
CMYK	cmyk(69.9%, 40.3%, 0%, 15.3%)
CIE-LAB	lab(53.79, 8.11, -50.60)
CIE-LCH	lch(53.79, 51.25, 279.10°)
OKLab	oklab(60.38% -0.0339 -0.1444)
OKLCH	oklch(60.38% 0.148 256.8)
XYZ	xyz(22.4204, 21.7798, 67.9748)
Luminance	0.2178 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4181D8 #D89841

analogous

#41CCD8 #4181D8 #4D41D8

triadic

#4181D8 #D84181 #81D841

tetradic

#4181D8 #D841CC #D89841 #41D84D

square

#4181D8 #D841CC #D89841 #41D84D

split-complementary

#4181D8 #D84D41 #CCD841

monochromatic

#1B4784 #2563B6 #4181D8 #74A3E2 #A7C4ED

Accessibility & contrast

On white

3.92

#4181D8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.36

#4181D8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4181D8

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4181D8	#FFFFFF	#000000	##000000
##4181D8	1.00	3.92	5.36	5.36
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.36	21.00	1.00	1.00
##000000	5.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5888DB

Deuteranopia (green-blind)

#407AD6

Tritanopia (blue-blind)

#0095A2

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #4181d8;
/* rgb */ color: rgb(65, 129, 216);
/* oklch */ color: oklch(60.4% 0.148 256.8);

Tailwind

colors: {
  custom: {
    50: '#87a5e4',
    500: '#4181d8',
    950: '#000000',
  },
}

SCSS

$custom: #4181d8;
$custom-light: #87a5e4;
$custom-dark: #000000;

JSON

{
  "hex": "#4181d8",
  "rgb": {
    "r": 65,
    "g": 129,
    "b": 216
  },
  "hsl": {
    "h": 214.57,
    "s": 65.939,
    "l": 55.098
  },
  "oklch": {
    "l": 0.60377,
    "c": 0.14828,
    "h": 256.8
  },
  "luminance": 0.21782
}

Semantic roles & 50–950 ramp

primary

#4181D8

secondary

#DABF9B

accent

#A13FE9

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0D0F16

muted

#7D7F84

Preview Lab

Preview with #4181D8

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

Preview Lab → · Contrast checker → · Palette generator →