#4173BD#4173BD

#4173BD is a mid, vivid blue. Relative luminance 0.171; OKLCH L 55.7% C 0.128 H 258.1°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#4173BD
RGB	rgb(65, 115, 189)
HSL	hsl(216, 49%, 50%)
HSV	hsv(216, 66%, 74%)
CMYK	cmyk(65.6%, 39.2%, 0%, 25.9%)
CIE-LAB	lab(48.33, 7.11, -43.90)
CIE-LCH	lch(48.33, 44.47, 279.20°)
OKLab	oklab(55.65% -0.0263 -0.1249)
OKLCH	oklch(55.65% 0.128 258.1)
XYZ	xyz(17.4927, 17.0577, 50.5048)
Luminance	0.1706 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4173BD #BD8B41

analogous

#41B1BD #4173BD #4D41BD

triadic

#4173BD #BD4173 #73BD41

tetradic

#4173BD #BD41B1 #BD8B41 #41BD4D

square

#4173BD #BD41B1 #BD8B41 #41BD4D

split-complementary

#4173BD #BD4D41 #B1BD41

monochromatic

#223C62 #31578F #4173BD #6E94CD #9CB6DD

Accessibility & contrast

On white

4.76

#4173BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#4173BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #4173BD

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4173BD	#FFFFFF	#000000	##FFFFFF
##4173BD	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5279C0

Deuteranopia (green-blind)

#406DBB

Tritanopia (blue-blind)

#00848F

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #4173bd;
/* rgb */ color: rgb(65, 115, 189);
/* oklch */ color: oklch(55.7% 0.128 258.1);

Tailwind

colors: {
  custom: {
    50: '#829ad1',
    500: '#4173bd',
    950: '#000000',
  },
}

SCSS

$custom: #4173bd;
$custom-light: #829ad1;
$custom-dark: #000000;

JSON

{
  "hex": "#4173bd",
  "rgb": {
    "r": 65,
    "g": 115,
    "b": 189
  },
  "hsl": {
    "h": 215.806,
    "s": 48.819,
    "l": 49.804
  },
  "oklch": {
    "l": 0.55653,
    "c": 0.12765,
    "h": 258.1
  },
  "luminance": 0.17059
}

Semantic roles & 50–950 ramp

primary

#4173BD

secondary

#C9B291

accent

#A14FD8

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #4173BD

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

Preview Lab → · Contrast checker → · Palette generator →