#4166B7#4166B7

#4166B7 is a mid, vivid blue. Relative luminance 0.140; OKLCH L 52.4% C 0.135 H 263.9°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#4166B7
RGB	rgb(65, 102, 183)
HSL	hsl(221, 48%, 49%)
HSV	hsv(221, 64%, 72%)
CMYK	cmyk(64.5%, 44.3%, 0%, 28.2%)
CIE-LAB	lab(44.30, 13.13, -46.85)
CIE-LCH	lch(44.30, 48.66, 285.66°)
OKLab	oklab(52.42% -0.0143 -0.1337)
OKLCH	oklch(52.42% 0.135 263.9)
XYZ	xyz(15.4756, 14.0440, 46.6858)
Luminance	0.1404 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4166B7 #B79241

analogous

#41A1B7 #4166B7 #5741B7

triadic

#4166B7 #B74166 #66B741

tetradic

#4166B7 #B741A1 #B79241 #41B757

square

#4166B7 #B741A1 #B79241 #41B757

split-complementary

#4166B7 #B75741 #A1B741

monochromatic

#21345D #314D8A #4166B7 #6B89CA #98ADDA

Accessibility & contrast

On white

5.51

#4166B7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#4166B7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4166B7

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4166B7	#FFFFFF	#000000	##FFFFFF
##4166B7	1.00	5.51	3.81	5.51
#FFFFFF	5.51	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#406FBA

Deuteranopia (green-blind)

#2D64B5

Tritanopia (blue-blind)

#007885

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #4166b7;
/* rgb */ color: rgb(65, 102, 183);
/* oklch */ color: oklch(52.4% 0.135 263.9);

Tailwind

colors: {
  custom: {
    50: '#8191cd',
    500: '#4166b7',
    950: '#000000',
  },
}

SCSS

$custom: #4166b7;
$custom-light: #8191cd;
$custom-dark: #000000;

JSON

{
  "hex": "#4166b7",
  "rgb": {
    "r": 65,
    "g": 102,
    "b": 183
  },
  "hsl": {
    "h": 221.186,
    "s": 47.581,
    "l": 48.627
  },
  "oklch": {
    "l": 0.52421,
    "c": 0.13451,
    "h": 263.9
  },
  "luminance": 0.14045
}

Semantic roles & 50–950 ramp

primary

#4166B7

secondary

#C6B48E

accent

#AD51D7

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #4166B7

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

Preview Lab → · Contrast checker → · Palette generator →