#4179D9#4179D9

#4179D9 is a mid, vivid blue. Relative luminance 0.198; OKLCH L 58.7% C 0.159 H 260.4°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#4179D9
RGB	rgb(65, 121, 217)
HSL	hsl(218, 67%, 55%)
HSV	hsv(218, 70%, 85%)
CMYK	cmyk(70%, 44.2%, 0%, 14.9%)
CIE-LAB	lab(51.62, 13.37, -54.64)
CIE-LCH	lch(51.62, 56.25, 283.75°)
OKLab	oklab(58.71% -0.0264 -0.1563)
OKLCH	oklch(58.71% 0.159 260.4)
XYZ	xyz(21.5372, 19.8061, 68.3201)
Luminance	0.1981 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4179D9 #D9A141

analogous

#41C5D9 #4179D9 #5541D9

triadic

#4179D9 #D94179 #79D941

tetradic

#4179D9 #D941C5 #D9A141 #41D955

square

#4179D9 #D941C5 #D9A141 #41D955

split-complementary

#4179D9 #D95541 #C5D941

monochromatic

#1B4285 #255BB8 #4179D9 #749DE3 #A7C1ED

Accessibility & contrast

On white

4.23

#4179D9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#4179D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4179D9

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4179D9	#FFFFFF	#000000	##000000
##4179D9	1.00	4.23	4.96	4.96
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4983DD

Deuteranopia (green-blind)

#2D75D7

Tritanopia (blue-blind)

#008F9E

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #4179d9;
/* rgb */ color: rgb(65, 121, 217);
/* oklch */ color: oklch(58.7% 0.159 260.4);

Tailwind

colors: {
  custom: {
    50: '#879fe5',
    500: '#4179d9',
    950: '#000000',
  },
}

SCSS

$custom: #4179d9;
$custom-light: #879fe5;
$custom-dark: #000000;

JSON

{
  "hex": "#4179d9",
  "rgb": {
    "r": 65,
    "g": 121,
    "b": 217
  },
  "hsl": {
    "h": 217.895,
    "s": 66.667,
    "l": 55.294
  },
  "oklch": {
    "l": 0.58711,
    "c": 0.15856,
    "h": 260.4
  },
  "luminance": 0.19808
}

Semantic roles & 50–950 ramp

primary

#4179D9

secondary

#DBC39B

accent

#AA3EEA

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0D0E16

muted

#7D7E84

Preview Lab

Preview with #4179D9

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

Preview Lab → · Contrast checker → · Palette generator →