#4173DE#4173DE

#4173DE is a mid, vivid blue. Relative luminance 0.187; OKLCH L 57.8% C 0.172 H 263.2°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#4173DE
RGB	rgb(65, 115, 222)
HSL	hsl(221, 70%, 56%)
HSV	hsv(221, 71%, 87%)
CMYK	cmyk(70.7%, 48.2%, 0%, 12.9%)
CIE-LAB	lab(50.28, 18.90, -59.61)
CIE-LCH	lch(50.28, 62.53, 287.60°)
OKLab	oklab(57.79% -0.0203 -0.171)
OKLCH	oklch(57.79% 0.172 263.2)
XYZ	xyz(21.4908, 18.6570, 71.5616)
Luminance	0.1866 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4173DE #DEAC41

analogous

#41C2DE #4173DE #5E41DE

triadic

#4173DE #DE4173 #73DE41

tetradic

#4173DE #DE41C2 #DEAC41 #41DE5E

square

#4173DE #DE41C2 #DEAC41 #41DE5E

split-complementary

#4173DE #DE5E41 #C2DE41

monochromatic

#183D8C #2154C0 #4173DE #7599E7 #A9C0F0

Accessibility & contrast

On white

4.44

#4173DE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#4173DE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4173DE

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4173DE	#FFFFFF	#000000	##000000
##4173DE	1.00	4.44	4.73	4.73
#FFFFFF	4.44	1.00	21.00	21.00
#000000	4.73	21.00	1.00	1.00
##000000	4.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#377FE2

Deuteranopia (green-blind)

#0171DC

Tritanopia (blue-blind)

#008C9E

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4173de;
/* rgb */ color: rgb(65, 115, 222);
/* oklch */ color: oklch(57.8% 0.172 263.2);

Tailwind

colors: {
  custom: {
    50: '#889ae9',
    500: '#4173de',
    950: '#000000',
  },
}

SCSS

$custom: #4173de;
$custom-light: #889ae9;
$custom-dark: #000000;

JSON

{
  "hex": "#4173de",
  "rgb": {
    "r": 65,
    "g": 115,
    "b": 222
  },
  "hsl": {
    "h": 220.892,
    "s": 70.404,
    "l": 56.275
  },
  "oklch": {
    "l": 0.57786,
    "c": 0.17226,
    "h": 263.2
  },
  "luminance": 0.18659
}

Semantic roles & 50–950 ramp

primary

#4173DE

secondary

#DEC99D

accent

#B43BED

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4173DE

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

Preview Lab → · Contrast checker → · Palette generator →